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Prof. Dr. Anna Köhler

Prof. Dr. Anna Köhler Prof. Dr. Anna Köhler
Prof. Dr. Anna Köhler

Fakultät für Mathematik, Physik und Informatik
Lehrstuhl für Experimentalphysik II


Berufserfahrung

2013  – 2016
Vizepräsidentin der Universität Bayreuth, Bereich internationale Angelegenheiten, Chancengleichheit und Außenkontakte
seit 2007
Professorin, Lehrstuhlinhaberin Experimentalphysik II, Universität Bayreuth
seit 2007
Vorstandsmitglied Bayreuther Institut für Makromolekülforschung (BIMF)
seit 2007
Professorin Elitestudienprogramm Macromolecular Science, Elitenetzwerk Bayern
2004 – 2007
Professorin für Experimentalphysik, Universität Potsdam
2002 – 2003
Dozentin, Department of Physics, King`s College London
1999 – 2004
University Research Fellowship der Royal Society, London. Fellowship held at the Cavendish laboratory, Department of Physics, University of Cambridge, UK
1996 – 1999
Research Fellowship von Peterhouse, Cambridge, UK. Fellowship held at the Cavendish Laboratory, Department of Physics, University of Cambridge, UK

Ausbildung

1998
Diplom in Physik, "Der photovoltaische Effekt an konjugierten Polymeren", Universität Karlsruhe
1993 – 1997
Promotion, "Photocurrent spectroscopy on conjugated polymers", Cavendish Laboratory, Department of Physics, Optoelectronics group, University of Cambridge, UK
1992 – 1993
Certificate of Advanced Studies in Mathematics, Department of Applied Mathematics and Theoretical Physics, University of Cambridge, UK
1989 – 1992
Studium der Physik, Universität Karlsruhe

Auszeichnungen und andere Verantwortlichkeiten

seit 2011
Mitglied des Kommittee des Stern-Gerlach-Preis (DFG)
seit 2011
Direktorin der Konrad-Adenauer-Stiftung
2011 – 2013
Mitglied des Senats, Universität Bayreuth
2009 – 2013
Mitglied der Präsidialkommission für Internationale Angelegenheiten, Universität Bayreuth
2009 – 2013
Frauenbeauftragte der Fakultät für Mathematik, Physik und Informatik, Universität Bayreuth
2009 – 2013
Mitglied des Fakultätsrats, Universität Bayreuth
seit 2007
Organisation von Konferenzen:
Light-Harvesting-Processes; Symposium BB Hybrid Functional Materials for Optical Applications at the MRS spring meeting in San Francisco 2007; Elected Vice-Chair for 2016 and Chair for 2018 for the Gordon Research Conference in Electronic Processes in Organic Materials, Lucca, Italien
1999 – 2004
Vorstandsmitglied, Peterhouse, Cambridge, UK
1993 – 1996
"Ribbands Research Studentship" of Wolfson College, Cambridge, UK
1994 – 1995
Stipendium des Deutschen Akademischen Austauschdienstes
1993 – 1994
Stipendium des Kurt-Hahn-Trust, Cambridge
1989 – 1995
Stipendium der Konrad-Adenauer-Stiftung
Prof. Dr. Anna Köhler

Fakultät für Mathematik, Physik und Informatik
Lehrstuhl für Experimentalphysik II


My Research is concerned with optical and electronic processes in organic semiconductors. These materials are of high interest to industry as they combine the mechanical and processing properties of semiconductors with the electronic properties of semiconductors. This allows for the development of novel solar cells, light-emitting diodes and transistors. The industrial development of such technologies requires a comprehensive understanding of their scientific foundations. Thus, my research focusses on understanding how excitations and charges are created in organic semiconductors, how they decay, what their properties are and which opto-electronic processes they allow for. To this end, I employ a broad range of techniques centered on absorption and luminescence spectroscopy as well as device characterization.

Prof. Dr. Anna Köhler

Fakultät für Mathematik, Physik und Informatik
Lehrstuhl für Experimentalphysik II


Ausgewählte Publikationen

2024

Franca, Larissa G.; Danos, Andrew; Saxena, Rishabh; Kuila, Suman; Stavrou, Kleitos; Li, Chunyong; Wedler, Stefan; Köhler, Anna; Monkman, Andrew P.
Exploring the Early Time Behavior of the Excited States of an Archetype Thermally Activated Del ...
In: The Journal of Physical Chemistry Letters Bd. 15 (2024) . - S. 1734-1740
doi:10.1021/acs.jpclett.4c00030 ...

2023

Witt, Christina; Schötz, Konstantin; Kuhn, Meike; Leupold, Nico; Biberger, Simon; Ramming, Philipp; Köhler, Anna; Moos, Ralf; Herzig, Eva M.; Panzer, Fabian
Understanding Structural Differences in Completely Dry-Processed MAPbI3 Thin Films by Detailed ...
2023
2023 MRS Spring Meeting & Exhibit, San Francisco, California, USA

Stankevych, Andrei; Saxena, Rishabh; Grüne, Jeannine; Lulei, Sebastian; Sperlich, Andreas; Athanasopoulos, Stavros; Vakhnin, Alexander; Sahay, Prakhar; Brütting, Wolfgang; Dyakonov, Vladimir; Bässler, Heinz; Köhler, Anna; Kadashchuk, Andrey
Charge-carrier photogeneration in single-component organic carbazole-based semiconductors via l ...
In: Physical Review Applied Bd. 20 (2023)
doi:10.1103/PhysRevApplied.20.064029 ...

Biberger, Simon; Leupold, Nico; Witt, Christina; Greve, Christopher; Markus, Paul; Ramming, Philipp; Lukas, Daniel; Schötz, Konstantin; Kahle, Frank-Julian; Zhu, Chenhui; Papastavrou, Georg; Köhler, Anna; Herzig, Eva M.; Moos, Ralf; Panzer, Fabian
First of Their Kind : Solar Cells with a Dry-Processed Perovskite Absorber Layer via Powder Aer ...
In: Solar RRL Bd. 7 (2023) Heft 16
doi:10.1002/solr.202300261 ...

Witt, Christina; Schötz, Konstantin; Biberger, Simon; Leupold, Nico; Kuhn, Meike; Ramming, Philipp; Herzig, Eva M.; Moos, Ralf; Panzer, Fabian; Köhler, Anna
Fully Dry-Processed and Powder-Based Halide Perovskite Solar Cells by Powder-Aerosol-Deposition ...
2023
2023 MRS Spring Meeting & Exhibit, San Francisco, California, USA

Kroh, Daniel; Athanasopoulos, Stavros; Nádaždy, Vojtech; Kahle, Frank-Julian; Bässler, Heinz; Köhler, Anna
An Impedance Study of the Density of States Distribution in Blends of PM6:Y6 in Relation to Bar ...
In: Advanced Functional Materials (2023)
doi:10.1002/adfm.202302520 ...

Biberger, Simon; Spies, Maximilian; Schötz, Konstantin; Kahle, Frank-Julian; Leupold, Nico; Moos, Ralf; Grüninger, Helen; Köhler, Anna; Panzer, Fabian
Improved Control of Perovskite Thin Film Formation by Reactive Spin Coating and Real Time In-Si ...
2023
12th SolTech Conference 2023, Würzburg, Germany

Siegert, Tobias; Greve, Christopher; Moos, Ralf; Herzig, Eva M.; Panzer, Fabian; Köhler, Anna; Grüninger, Helen
Influence of Particle Size on Halide Mixing Between MAPbI3 and MAPbBr3
2023
12th SolTech Conference 2023, Würzburg, Germany

Burdakov, Ya. V.; Saunina, A. Yu.; Bässler, Heinz; Köhler, Anna; Nikitenko, V. R.
Modeling of charge transport in polymers with embedded crystallites
In: Physical Review B Bd. 108 (2023) Heft 8
doi:10.1103/PhysRevB.108.085301 ...

Stankevych, Andrei; Saxena, Rishabh; Vakhnin, Alexander; May, Falk; Kinaret, Naomi; Andrienko, Denis; Genoe, Jan; Bässler, Heinz; Köhler, Anna; Kadashchuk, Andrey
Monitoring the Charge-Carrier-Occupied Density of States in Disordered Organic Semiconductors u ...
In: Physical Review Applied Bd. 19 (2023) Heft 5
doi:10.1103/PhysRevApplied.19.054007 ...

Duda, Eimantas; Madayanad Suresh, Subeesh; Hall, David; Bagnich, Sergey; Saxena, Rishabh; Cordes, David B.; Slawin, Alexandra M. Z.; Beljonne, David; Olivier, Yoann; Köhler, Anna; Zysman-Colman, Eli
An Oligomer Approach for Blue Thermally Activated Delayed Fluorescent Emitters Based on Twisted ...
In: Chemistry of Materials Bd. 35 (2023) Heft 5. - S. 2027-2037
doi:10.1021/acs.chemmater.2c03438 ...

Witt, Christina; Schötz, Konstantin; Kuhn, Meike; Leupold, Nico; Biberger, Simon; Ramming, Philipp; Kahle, Frank-Julian; Köhler, Anna; Moos, Ralf; Herzig, Eva M.; Panzer, Fabian
Orientation and Grain Size in MAPbI₃ Thin Films : Influence on Phase Transition, Disorder, and ...
In: The Journal of Physical Chemistry C Bd. 127 (2023) Heft 22. - S. 10563-10573
doi:10.1021/acs.jpcc.2c08968 ...

Ramming, Philipp; Siegert, Tobias; Biberger, Simon; Witt, Christina; Leupold, Nico; Moos, Ralf; Grüninger, Helen; Panzer, Fabian; Köhler, Anna
Perovskite Research Highlights
2023
12th SolTech Conference 2023, Würzburg, Germany

Schötz, Konstantin; Panzer, Fabian; Sommer, Michael; Bässler, Heinz; Köhler, Anna
A spectroscopic assessment of static and dynamic disorder in a film of a polythiophene with a p ...
In: Materials Horizons Bd. 10 (2023) Heft 12. - S. 5538-5546
doi:10.1039/D3MH01262J ...

Greve, Christopher; Ramming, Philipp; Griesbach, Markus; Leupold, Nico; Moos, Ralf; Köhler, Anna; Herzig, Eva M.; Panzer, Fabian; Grüninger, Helen
To Stop or to Shuttle Halides? The Role of an Ionic Liquid in Thermal Halide Mixing of Hybrid P ...
In: ACS Energy Letters Bd. 8 (2023) . - S. 5041-5049
doi:10.1021/acsenergylett.3c01878 ...

Chen, Xinrui; Bagnich, Sergey; Pollice, Robert; Li, Bing; Zhu, Yuanyuan; Saxena, Rishabh; Yin, Yixiao; Zhu, Weiguo; Aspuru-Guzik, Alan; Zysman-Colman, Eli; Köhler, Anna; Wang, Yafei
Unveiling the TADF Emitters with Apparent Negative Singlet-Triplet Gaps : Implications for Exci ...
In: Advanced Optical Materials (2023)
doi:10.1002/adom.202301784 ...

Biberger, Simon; Schötz, Konstantin; Leupold, Nico; Ramming, Philipp; Spies, Maximilian; Moos, Ralf; Köhler, Anna; Grüninger, Helen; Panzer, Fabian
Using Multimodal In Situ Spectroscopy to Understand the Influence of the Ionic Liquid BMIMBF4 o ...
2023
2023 MRS Spring Meeting & Exhibit, San Francisco, California, USA

2022

Duda, Eimantas; Hall, David; Bagnich, Sergey; Carpenter-Warren, Cameron L.; Saxena, Rishabh; Wong, Michael Y.; Cordes, David B.; Slawin, Alexandra M. Z.; Beljonne, David; Olivier, Yoann; Zysman-Colman, Eli; Köhler, Anna
Enhancing Thermally Activated Delayed Fluorescence by Fine-Tuning the Dendron Donor Strength
In: The Journal of Physical Chemistry B Bd. 126 (2022) Heft 2. - S. 552-562
doi:10.1021/acs.jpcb.1c05749 ...

Biberger, Simon; Schötz, Konstantin; Ramming, Philipp; Leupold, Nico; Moos, Ralf; Köhler, Anna; Grüninger, Helen; Panzer, Fabian
How the ionic liquid BMIMBF₄ influences the formation and optoelectronic properties of MAPbI₃ t ...
In: Journal of Materials Chemistry A Bd. 10 (2022) Heft 35. - S. 18038-18049
doi:10.1039/D2TA04448J ...

Kroh, Daniel; Eller, Fabian; Schötz, Konstantin; Wedler, Stefan; Perdigón-Toro, Lorena; Freychet, Guillaume; Wei, Qingya; Dörr, Maximilian; Jones, David; Zou, Yingping; Herzig, Eva M.; Neher, Dieter; Köhler, Anna
Identifying the Signatures of Intermolecular Interactions in Blends of PM6 with Y6 and N4 Using ...
In: Advanced Functional Materials Bd. 32 (2022) Heft 44
doi:10.1002/adfm.202205711 ...

Hochgesang, Adrian; Biberger, Simon; Grüne, Jeannine; Mohanraj, John; Kahle, Frank-Julian; Dyakonov, Vladimir; Köhler, Anna; Thelakkat, Mukundan
Intricacies and Mechanism of p-Doping Spiro-MeOTAD Using Cu(TFSI)₂
In: Advanced Electronic Materials Bd. 8 (2022) Heft 10
doi:10.1002/aelm.202200113 ...

Nazarenus, Tobias; Schlesier, Kira; Biberger, Simon; Exner, Jörg; Kita, Jaroslaw; Köhler, Anna; Moos, Ralf
Posttreatment of powder aerosol deposited oxide ceramic films by high power LED
In: International Journal of Applied Ceramic Technology Bd. 19 (2022) Heft 3. - S. 1540-1553
doi:10.1111/ijac.13977 ...

Sun, Dianming; Saxena, Rishabh; Fan, Xiaochun; Athanasopoulos, Stavros; Duda, Eimantas; Zhang, Ming; Bagnich, Sergey; Zhang, Xiaohong; Zysman-Colman, Eli; Köhler, Anna
Regiochemistry of Donor Dendrons Controls the Performance of Thermally Activated Delayed Fluore ...
In: Advanced Science Bd. 9 (2022) Heft 20
doi:10.1002/advs.202201470 ...

Kahle, Frank-Julian; Rudnick, Alexander; Wedler, Stefan; Saxena, Rishabh; Ammenhäuser, Robin; Scherf, Ullrich; Bagnich, Sergey; Bässler, Heinz; Köhler, Anna
Static and Dynamic Disorder of Charge Transfer States Probed by Optical Spectroscopy
In: Advanced Energy Materials Bd. 12 (2022) Heft 15
doi:10.1002/aenm.202103063 ...

Sun, Dianming; Duda, Eimantas; Fan, Xiaochun; Saxena, Rishabh; Zhang, Ming; Bagnich, Sergey; Zhang, Xiaohong; Köhler, Anna; Zysman-Colman, Eli
Thermally Activated Delayed Fluorescent Dendrimers that Underpin High-Efficiency Host-Free Solu ...
In: Advanced Materials Bd. 34 (2022) Heft 23
doi:10.1002/adma.202110344 ...

Perdigón-Toro, Lorena; Phuong, Le Quang; Eller, Fabian; Freychet, Guillaume; Saglamkaya, Elifnaz; Khan, Jafar I.; Wei, Qingya; Zeiske, Stefan; Kroh, Daniel; Wedler, Stefan; Köhler, Anna; Armin, Ardalan; Laquai, Frédéric; Herzig, Eva M.; Zou, Yingping; Shoaee, Safa; Neher, Dieter
Understanding the Role of Order in Y-Series Non-Fullerene Solar Cells to Realize High Open-Circ ...
In: Advanced Energy Materials Bd. 12 (2022) Heft 12
doi:10.1002/aenm.202103422 ...

Fishchuk, Ivan I.; Kadashchuk, Andrey; Rolin, Cedric; Bässler, Heinz; Köhler, Anna; Heremans, Paul; Genoe, Jan
Random band-edge model description of thermoelectricity in high-mobility disordered semiconduct ...
In: Physical Review B Bd. 105 (2022) Heft 24
doi:10.1103/PhysRevB.105.245201 ...

2021

Stankevych, Andrei; Vakhnin, Alexander; Andrienko, Denis; Paterson, Leanne; Genoe, Jan; Fishchuk, Ivan; Bässler, Heinz; Köhler, Anna; Kadashchuk, Andrey
Density of States of OLED Host Materials from Thermally Stimulated Luminescence
In: Physical Review Applied Bd. 15 (2021) Heft 4
doi:10.1103/PhysRevApplied.15.044050 ...

Kurz, Hannah; Schötz, Konstantin; Papadopoulos, Ilias; Heinemann, Frank W.; Maid, Harald; Guldi, Dirk M.; Köhler, Anna; Hörner, Gerald; Weber, Birgit
A Fluorescence-Detected Coordination-Induced Spin State Switch
In: Journal of the American Chemical Society Bd. 143 (2021) Heft 9. - S. 3466-3480
doi:10.1021/jacs.0c12568 ...

Meier, Tobias; Bässler, Heinz; Köhler, Anna
The Impact of Grain Boundaries on Charge Transport in Polycrystalline Organic Field-Effect Tran ...
In: Advanced Optical Materials Bd. 9 (2021) Heft 14
doi:10.1002/adom.202100115 ...

Zhong, Yu; Seeberger, Dominik; Herzig, Eva M.; Köhler, Anna; Panzer, Fabian; Li, Cheng; Hüttner, Sven
The Impact of Solvent Vapor on the Film Morphology and Crystallization Kinetics of Lead Halide ...
In: ACS Applied Materials & Interfaces Bd. 13 (2021) Heft 38. - S. 45365-45374
doi:10.1021/acsami.1c09075 ...

Rodella, Francesco; Saxena, Rishabh; Bagnich, Sergey; Banevičius, Dovydas; Kreiza, Gediminas; Athanasopoulos, Stavros; Juršėnas, Saulius; Kazlauskas, Karolis; Köhler, Anna; Strohriegl, Peter
Low efficiency roll-off blue TADF OLEDs employing a novel acridine–pyrimidine based high triple ...
In: Journal of Materials Chemistry C Bd. 9 (2021) Heft 48. - S. 17471-17482
doi:10.1039/D1TC03598C ...

Bässler, Heinz; Kroh, Daniel; Schauer, Franz; Nádaždy, Vojtech; Köhler, Anna
Mapping the Density of States Distribution of Organic Semiconductors by Employing Energy Resolv ...
In: Advanced Functional Materials Bd. 31 (2021) Heft 9
doi:10.1002/adfm.202007738 ...

Saxena, Rishabh; Fishchuk, I. I.; Nikitenko, V. R.; Burdakov, Ya. V.; Metel, Yu. V.; Genoe, Jan; Bässler, Heinz; Köhler, Anna; Kadashchuk, A.
Role of the reorganization energy for charge transport in disordered organic semiconductors
In: Physical Review B Bd. 103 (2021) Heft 16
doi:10.1103/PhysRevB.103.165202 ...

Hall, David; Rajamalli, Pachaiyappan; Duda, Eimantas; Suresh, Subeesh Madayanad; Rodella, Francesco; Bagnich, Sergey; Carpenter-Warren, Cameron L.; Cordes, David B.; Slawin, Alexandra M. Z.; Strohriegl, Peter; Beljonne, David; Köhler, Anna; Olivier, Yoann; Zysman-Colman, Eli
Substitution Effects on a New Pyridylbenzimidazole Acceptor for Thermally Activated Delayed Flu ...
In: Advanced Optical Materials Bd. 9 (2021) Heft 20
doi:10.1002/adom.202100846 ...

Ramming, Philipp; Leupold, Nico; Schötz, Konstantin; Köhler, Anna; Moos, Ralf; Grüninger, Helen; Panzer, Fabian
Suppressed ion migration in powder-based perovskite thick films using an ionic liquid
In: Journal of Materials Chemistry C Bd. 9 (2021) Heft 35. - S. 11827-11837
doi:10.1039/D1TC01554K ...

Raišys, Steponas; Adomėnienė, Ona; Adomėnas, Povilas; Rudnick, Alexander; Köhler, Anna; Kazlauskas, Karolis
Triplet Exciton Diffusion and Quenching in Matrix-Free Solid Photon Upconversion Films
In: The Journal of Physical Chemistry C Bd. 125 (2021) Heft 7. - S. 3764-3775
doi:10.1021/acs.jpcc.0c11048 ...

2020

Suresh, Subeesh Madayanad; Duda, Eimantas; Hall, David; Yao, Zhen; Bagnich, Sergey; Slawin, Alexandra M. Z.; Bässler, Heinz; Beljonne, David; Buck, Manfred; Olivier, Yoann; Köhler, Anna; Zysman-Colman, Eli
A Deep Blue B,N-Doped Heptacene Emitter That Shows Both Thermally Activated Delayed Fluorescenc ...
In: Journal of the American Chemical Society Bd. 142 (2020) Heft 14. - S. 6588-6599
doi:10.1021/jacs.9b13704 ...

Schötz, Konstantin; Askar, Abdelrahman M.; Peng, Wei; Seeberger, Dominik; Gujar, Tanaji P.; Thelakkat, Mukundan; Köhler, Anna; Hüttner, Sven; Bakr, Osman M.; Shankar, Karthik; Panzer, Fabian
Double peak emission in lead halide perovskites by self-absorption
In: Journal of Materials Chemistry C Bd. 8 (2020) Heft 7. - S. 2289-2300
doi:10.1039/C9TC06251C ...

Feng, Jiale; Yang, Lupeng; Romanov, Alexander S.; Ratanapreechachai, Jirawit; Reponen, Antti‐Pekka M.; Jones, Saul T. E.; Linnolahti, Mikko; Hele, Timothy J. H.; Köhler, Anna; Bässler, Heinz; Bochmann, Manfred; Credgington, Dan
Environmental Control of Triplet Emission in Donor–Bridge–Acceptor Organometallics
In: Advanced Functional Materials Bd. 30 (2020) Heft 9
doi:10.1002/adfm.201908715 ...

Rodella, Francesco; Bagnich, Sergey; Duda, Eimantas; Meier, Tobias; Kahle, Frank-Julian; Athanasopoulos, Stavros; Köhler, Anna; Strohriegl, Peter
High Triplet Energy Host Materials for Blue TADF OLEDs : A Tool Box Approach
In: Frontiers in Chemistry Bd. 8 (2020)
doi:10.3389/fchem.2020.00657 ...

Hall, David; Suresh, Subeesh Madayanad; dos Santos, Paloma L.; Duda, Eimantas; Bagnich, Sergey; Pershin, Anton; Rajamalli, Pachaiyappan; Cordes, David B.; Slawin, Alexandra M. Z.; Beljonne, David; Köhler, Anna; Samuel, Ifor D. W.; Olivier, Yoann; Zysman‐Colman, Eli
Improving Processability and Efficiency of Resonant TADF Emitters : a Design Strategy
In: Advanced Optical Materials Bd. 8 (2020) Heft 2
doi:10.1002/adom.201901627 ...

Schmode, Philip; Schötz, Konstantin; Dolynchuk, Oleksandr; Panzer, Fabian; Köhler, Anna; Thurn-Albrecht, Thomas; Thelakkat, Mukundan
Influence of ω-Bromo Substitution on Structure and Optoelectronic Properties of Homopolymers an ...
In: Macromolecules Bd. 53 (2020) Heft 7. - S. 2474-2484
doi:10.1021/acs.macromol.0c00352 ...

Schötz, Konstantin; Askar, Abdelrahman M.; Köhler, Anna; Shankar, Karthik; Panzer, Fabian
Investigating the Tetragonal-to-Orthorhombic Phase Transition of Methylammonium Lead Iodide Sin ...
In: Advanced Optical Materials Bd. 8 (2020) Heft 17
doi:10.1002/adom.202000455 ...

Chauhan, Mihirsinh; Zhong, Yu; Schötz, Konstantin; Tripathi, Brijesh; Köhler, Anna; Hüttner, Sven; Panzer, Fabian
Investigating two-step MAPbI₃ thin film formation during spin coating by simultaneous in situ a ...
In: Journal of Materials Chemistry A Bd. 8 (2020) Heft 10. - S. 5086-5094
doi:10.1039/C9TA12409H ...

Schönfeld, Sophie; Dankhoff, Katja; Baabe, Dirk; Zaretzke, Marc-Kevin; Bröring, Martin; Schötz, Konstantin; Köhler, Anna; Hörner, Gerald; Weber, Birgit
Iron(II) Spin Crossover Complexes Based on a Redox Active Equatorial Schiff-Base-Like Ligand
In: Inorganic Chemistry Bd. 59 (2020) Heft 12. - S. 8320-8333
doi:10.1021/acs.inorgchem.0c00725 ...

Saxena, Rishabh; Meier, Tobias; Athanasopoulos, Stavros; Bässler, Heinz; Köhler, Anna
Kinetic Monte Carlo Study of Triplet-Triplet Annihilation in Conjugated Luminescent Materials
In: Physical Review Applied Bd. 14 (2020) Heft 3
doi:10.1103/PhysRevApplied.14.034050 ...

Zhang, Zhen; Kumar, Shiv; Bagnich, Sergey; Spuling, Eduard; Hundemer, Fabian; Nieger, Martin; Hassan, Zahid; Köhler, Anna; Zysman-Colman, Eli; Bräse, Stefan
OBO-Fused Benzo[fg]tetracene as Acceptor With Potential for Thermally Activated Delayed Fluores ...
In: Frontiers in Chemistry Bd. 8 (2020)
doi:10.3389/fchem.2020.563411 ...

Liao, Xiaojian; Kahle, Frank-Julian; Liu, Bin; Bässler, Heinz; Zhang, Xinghong; Köhler, Anna; Greiner, Andreas
Polarized blue photoluminescence of mesoscopically ordered electrospun non-conjugated polyacryl ...
In: Materials Horizons Bd. 7 (2020) Heft 6. - S. 1605-1612
doi:10.1039/D0MH00002G ...

Wedler, Stefan; Zhou, Cheng; Bazan, Guillermo C.; Panzer, Fabian; Köhler, Anna
Role of Torsional Flexibility in the Film Formation Process in Two π-Conjugated Model Oligomers ...
In: The Journal of Physical Chemistry Letters Bd. 11 (2020) . - S. 9379-9386
doi:10.1021/acs.jpclett.0c02778 ...

Wollmann, Julia; Kahle, Frank-Julian; Bauer, Irene; Köhler, Anna; Strohriegl, Peter
Versatile Approach to Well-Defined Oligofluorenes and Polyfluorenes with Low Dispersity
In: Macromolecules Bd. 53 (2020) Heft 22. - S. 10137-10146
doi:10.1021/acs.macromol.0c01887 ...

Wedler, Stefan; Bourdick, Axel; Athanasopoulos, Stavros; Gekle, Stephan; Panzer, Fabian; McDowell, Caitlin; Nguyen, Thuc-Quyen; Bazan, Guillermo C.; Köhler, Anna
What is the role of planarity and torsional freedom for aggregation in a π-conjugated donor–acc ...
In: Journal of Materials Chemistry C Bd. 8 (2020) Heft 14. - S. 4944-4955
doi:10.1039/D0TC00217H ...

2019

Yurash, Brett; Leifert, Dirk; Reddy, G. N. Manjunatha; Cao, David Xi; Biberger, Simon; Brus, Viktor V.; Seifrid, Martin; Santiago, Peter J.; Köhler, Anna; Chmelka, Bradley F.; Bazan, Guillermo C.; Nguyen, Thuc-Quyen
Atomic-Level Insight into the Postsynthesis Band Gap Engineering of a Lewis Base Polymer Using ...
In: Chemistry of Materials Bd. 31 (2019) Heft 17. - S. 6715-6725
doi:10.1021/acs.chemmater.9b01224 ...

Vladimirov, Ilja; Müller, Sebastian; Baumann, Roelf-Peter; Geßner, Thomas; Molla, Zahra; Grigorian, Souren; Köhler, Anna; Bässler, Heinz; Pietsch, Ullrich; Weitz, Ralf Thomas
Dielectric–Semiconductor Interface Limits Charge Carrier Motion at Elevated Temperatures and La ...
In: Advanced Functional Materials Bd. 29 (2019) Heft 12
doi:10.1002/adfm.201807867 ...

Leupold, Nico; Schötz, Konstantin; Cacovich, Stefania; Bauer, Irene; Schultz, Maximilian; Daubinger, Monika; Kaiser, Leah; Rebai, Amelle; Rousset, Jean; Köhler, Anna; Schulz, Philip; Moos, Ralf; Panzer, Fabian
High Versatility and Stability of Mechanochemically Synthesized Halide Perovskite Powders for O ...
In: ACS Applied Materials & Interfaces Bd. 11 (2019) Heft 33. - S. 30259-30268
doi:10.1021/acsami.9b09160 ...

Kahle, Frank-Julian; Hahn, Tobias; Mukhopadhyay, Tushita; Puttaraju, Boregowda; Patil, Satish; Köhler, Anna
Organic Bidirectional Phototransistors Based on Diketopyrrolopyrrole and Fullerene
In: Advanced Functional Materials Bd. 29 (2019) Heft 21
doi:10.1002/adfm.201805684 ...

2018

Reichenberger, Markus; Kroh, Daniel; Matrone, Giovanni M. M.; Schötz, Konstantin; Pröller, Stephan; Filonik, Oliver; Thordardottir, Margret E.; Herzig, Eva M.; Bässler, Heinz; Stingelin, Natalie; Köhler, Anna
Controlling aggregate formation in conjugated polymers by spin-coating below the critical tempe ...
In: Journal of Polymer Science Part B: Polymer Physics Bd. 56 (2018) Heft 6. - S. 532-542
doi:10.1002/polb.24562 ...

Raithel, Dominic; Simine, Lena; Pickel, Sebastian; Schötz, Konstantin; Panzer, Fabian; Baderschneider, Sebastian; Schiefer, Daniel; Lohwasser, Ruth H.; Köhler, Jürgen; Thelakkat, Mukundan; Sommer, Michael; Köhler, Anna; Rossky, Peter J.; Hildner, Richard
Direct observation of backbone planarization via side-chain alignment in single bulky-substitut ...
In: Proceedings of the National Academy of Sciences of the United States of America Bd. 115 (2018) Heft 11. - S. 2699-2704
doi:10.1073/pnas.1719303115 ...

Kahle, Frank-Julian; Saller, Christina; Olthof, Selina; Li, Cheng; Lebert, Jenny; Weiß, Sebastian; Herzig, Eva M.; Hüttner, Sven; Meerholz, Klaus; Strohriegl, Peter; Köhler, Anna
Does Electron Delocalization Influence Charge Separation at Donor–Acceptor Interfaces in Organi ...
In: The Journal of Physical Chemistry C Bd. 122 (2018) Heft 38. - S. 21792-21802
doi:10.1021/acs.jpcc.8b06429 ...

Milward, Jonathan D.; Marcus, Max; Köhler, Anna; Barford, William
Extracting structural information from MEH-PPV optical spectra
In: The Journal of Chemical Physics Bd. 149 (2018)
doi:10.1063/1.5041938 ...

Saller, Christina; Kahle, Frank-Julian; Müller, Thomas; Hahn, Tobias; Tscheuschner, Steffen; Priadko, Denys; Strohriegl, Peter; Bässler, Heinz; Köhler, Anna
Facile Method for the Investigation of Temperature-Dependent C₆₀ Diffusion in Conjugated Polyme ...
In: ACS Applied Materials & Interfaces Bd. 10 (2018) Heft 25. - S. 21499-21509
doi:10.1021/acsami.8b05520 ...

Kahle, Frank-Julian; Rudnick, Alexander; Bässler, Heinz; Köhler, Anna
How to interpret absorption and fluorescence spectra of charge transfer states in an organic so ...
In: Materials Horizons Bd. 5 (2018) Heft 5. - S. 837-848
doi:10.1039/C8MH00564H ...

Meier, Tobias; Gujar, Tanaji P.; Schönleber, Andreas; Olthof, Selina; Meerholz, Klaus; van Smaalen, Sander; Panzer, Fabian; Thelakkat, Mukundan; Köhler, Anna
Impact of excess PbI₂ on the structure and the temperature dependent optical properties of meth ...
In: Journal of Materials Chemistry C Bd. 6 (2018) Heft 28. - S. 7512-7519
doi:10.1039/C8TC02237B ...

Leupold, Nico; Schötz, Konstantin; Daubinger, Monika; Dürrmann, Andreas; Bauer, Irene; Köhler, Anna; Moos, Ralf; Panzer, Fabian
Large batch mechanochemically synthesized powders of hybrid perovskites for optoelectronic appl ...
2018
4th International Conference on Perovskite Solar Cells and Optoelectronics, Lausanne, Switzerland

Bourdick, Axel; Reichenberger, Markus; Stradomska, Anna; Bazan, Guillermo C.; Nguyen, Thuc-Quyen; Köhler, Anna; Gekle, Stephan
lucidating Aggregation Pathways in the Donor–Acceptor Type Molecules p-DTS(FBTTh₂)₂ and p-SIDT( ...
In: The Journal of Physical Chemistry B Bd. 122 (2018) Heft 39. - S. 9191-9201
doi:10.1021/acs.jpcb.8b06283 ...

Kadashchuk, Andrey; Janneck, Robby; Tong, Fei; Fishchuk, Ivan I.; Mityashin, Alexander; Pavlica, Egon; Köhler, Anna; Heremans, Paul; Rolin, Cedric; Bratina, Gvido; Genoe, Jan
Negative field-dependent charge mobility in crystalline organic semiconductors with delocalized ...
In: Chemical Papers Bd. 72 (2018) Heft 7. - S. 1685-1695
doi:10.1007/s11696-018-0483-x ...

Gujar, Tanaji P.; Unger, Thomas; Schönleber, Andreas; Fried, Martina; Panzer, Fabian; van Smaalen, Sander; Köhler, Anna; Thelakkat, Mukundan
The role of PbI2 in CH3NH3PbI3 perovskite stability, solar cell parameters and device degradati ...
In: Physical Chemistry Chemical Physics Bd. 20 (2018) Heft 1. - S. 605-614
doi:10.1039/C7CP04749E ...

Lochenie, Charles; Schötz, Konstantin; Panzer, Fabian; Kurz, Hannah; Maier, Bernadette; Puchtler, Florian; Agarwal, Seema; Köhler, Anna; Weber, Birgit
Spin-Crossover Iron(II) Coordination Polymer with Fluorescent Properties : Correlation between ...
In: Journal of the American Chemical Society Bd. 140 (2018) Heft 2. - S. 700-709
doi:10.1021/jacs.7b10571 ...

Marcus, Max; Milward, Jonathan D.; Köhler, Anna; Barford, William
Structural Information for Conjugated Polymers from Optical Modeling
In: The Journal of Physical Chemistry A Bd. 122 (2018) Heft 14. - S. 3621-3625
doi:10.1021/acs.jpca.8b01585 ...

Fishchuk, Ivan I.; Bässler, Heinz; Köhler, Anna; Genoe, Jan; Kadashchuk, Andrey
Unraveling the Role of Multiphonon Excitations and Disorder Concerning the Meyer-Neldel Type Co ...
In: Physical Review Applied Bd. 10 (2018) Heft 5
doi:10.1103/PhysRevApplied.10.054063 ...

2017

Hildner, Richard; Köhler, Anna; Müller-Buschbaum, Peter; Panzer, Fabian; Thelakkat, Mukundan
π-Conjugated Donor Polymers : Structure Formation and Morphology in Solution, Bulk and Photovol ...
In: Advanced Energy Materials Bd. 7 (2017) Heft 16
doi:10.1002/aenm.201700314 ...

Kahle, Frank-Julian; Saller, Christina; Köhler, Anna; Strohriegl, Peter
Crosslinked Semiconductor Polymers for Photovoltaic Applications
In: Advanced Energy Materials Bd. 7 (2017) Heft 16
doi:10.1002/aenm.201700306 ...

Athanasopoulos, Stavros; Tscheuschner, Steffen; Bässler, Heinz; Köhler, Anna
Efficient Charge Separation of Cold Charge-Transfer States in Organic Solar Cells Through Incoh ...
In: The Journal of Physical Chemistry Letters Bd. 8 (2017) Heft 9. - S. 2093-2098
doi:10.1021/acs.jpclett.7b00595 ...

Wilma, Kevin; Unger, Thomas; Kostakoğlu, Sinem Tuncel; Hollfelder, Manuel; Hunger, Christoph; Lang, Andreas; Gurek, Ayse Gul; Thelakkat, Mukundan; Köhler, Jürgen; Köhler, Anna; Gekle, Stephan; Hildner, Richard
Excited State Dynamics and Conformations of a Cu(II)-Phthalocyanine-Perylenebisimide Dyad
In: Physical Chemistry Chemical Physics Bd. 19 (2017) Heft 33. - S. 22169-22176
doi:10.1039/C7CP04026A ...

Mukhopadhyay, Tushita; Puttaraju, Boregowda; Roy, Palas; Dasgupta, Jyotishman; Meyer, Andreas; Rudnick, Alexander; Tscheuschner, Steffen; Kahle, Frank-Julian; Köhler, Anna; Patil, Satish
Facile Synthesis and Chain-Length Dependence of the Optical and Structural Properties of Diketo ...
In: Chemistry : a European Journal Bd. 23 (2017) Heft 55. - S. 13718-13723
doi:10.1002/chem.201702131 ...

Unger, Thomas; Wedler, Stefan; Kahle, Frank-Julian; Scherf, Ullrich; Bässler, Heinz; Köhler, Anna
The Impact of Driving Force and Temperature on the Electron Transfer in Donor–Acceptor Blend Sy ...
In: The Journal of Physical Chemistry C Bd. 121 (2017) Heft 41. - S. 22739-22752
doi:10.1021/acs.jpcc.7b09213 ...

Panzer, Fabian; Li, Cheng; Meier, Tobias; Köhler, Anna; Hüttner, Sven
Impact of Structural Dynamics on the Optical Properties of Methylammonium Lead Iodide Perovskit ...
In: Advanced Energy Materials Bd. 7 (2017) Heft 16
doi:10.1002/aenm.201700286 ...

Kahle, Frank-Julian; Bauer, Irene; Strohriegl, Peter; Köhler, Anna
Influence of Crosslinking on Charge Carrier Mobility in Crosslinkable Polyfluorene Derivatives
In: Journal of Polymer Science Part B: Polymer Physics Bd. 55 (2017) Heft 1. - S. 112-120
doi:10.1002/polb.24259 ...

Rudnick, Alexander; Kass, Kim-Julia; Preis, Eduard; Scherf, Ullrich; Bässler, Heinz; Köhler, Anna
Interplay of localized pyrene chromophores and π−conjugation in novel poly(2,7- pyrene) ladder ...
In: The Journal of Chemical Physics Bd. 146 (2017)
doi:10.1063/1.4982046 ...

Hahn, Tobias; Tscheuschner, Steffen; Kahle, Frank-Julian; Reichenberger, Markus; Athanasopoulos, Stavros; Saller, Christina; Bazan, Guillermo C.; Nguyen, Thuc-Quyen; Strohriegl, Peter; Bässler, Heinz; Köhler, Anna
Monomolecular and Bimolecular Recombination of Electron–Hole Pairs at the Interface of a Bilaye ...
In: Advanced Functional Materials Bd. 27 (2017) Heft 1
doi:10.1002/adfm.201604906 ...

Kadashchuk, Andrey; Tong, Fei; Janneck, Robby; Fishchuk, Ivan I.; Mityashin, Alexander; Pavlica, Egon; Köhler, Anna; Heremans, Paul; Rolin, Cedric; Bratina, Gvido; Genoe, Jan
Role of transport band edge variation on delocalized charge transport in high-mobility crystall ...
In: Physical Review B Bd. 96 (2017) Heft 12
doi:10.1103/PhysRevB.96.125202 ...

Rudnick, Alexander; Wetzel, Christoph; Tscheuschner, Steffen; Schmalz, Holger; Vogt, Astrid; Greiner, Andreas; Bässler, Heinz; Mena-Osteritz, Elena; Bäuerle, Peter; Köhler, Anna
Spectroscopic Study of Thiophene–Pyrrole-Containing S,N-Heteroheptacenes Compared to Acenes and ...
In: The Journal of Physical Chemistry B Bd. 121 (2017) Heft 31. - S. 7492-7501
doi:10.1021/acs.jpcb.7b02935 ...

Panzer, Fabian; Bässler, Heinz; Köhler, Anna
Temperature Induced Order–Disorder Transition in Solutions of Conjugated Polymers Probed by Opt ...
In: The Journal of Physical Chemistry Letters Bd. 8 (2017) . - S. 114-125
doi:10.1021/acs.jpclett.6b01641 ...

Wetzel, Christoph; Vogt, Astrid; Rudnick, Alexander; Mena-Osteritz, Elena; Köhler, Anna; Bäuerle, Peter
Thiophene–pyrrole containing S,N-heteroheptacenes : synthesis, and optical and electrochemical ...
In: Organic Chemistry Frontiers Bd. 4 (2017) Heft 8. - S. 1629-1635
doi:10.1039/c7qo00294g ...

2016

Panzer, Fabian; Hanft, Dominik; Gujar, Tanaji P.; Kahle, Frank-Julian; Thelakkat, Mukundan; Köhler, Anna; Moos, Ralf
Compact Layers of Hybrid Halide Perovskites Fabricated via the Aerosol Deposition Process : Unc ...
In: Materials Bd. 9 (2016) Heft 4
doi:10.3390/ma9040277 ...

Strohriegl, Peter; Saller, Christina; Knauer, Philipp; Köhler, Anna; Hahn, Tobias; Fischer, Florian; Kahle, Frank-Julian
Crosslinkable low bandgap polymers for organic solar cells
Organic voltaics XVII
Bellingham, Washington : SPIE, 2016 (Proceedings / SPIE, International Society for Optical Engineering; 9942)
doi:10.1117/12.2239400 ...

Reichenberger, Markus; Love, John A.; Rudnick, Alexander; Bagnich, Sergey; Panzer, Fabian; Stradomska, Anna; Bazan, Guillermo C.; Nguyen, Thuc-Quyen; Köhler, Anna
The effect of intermolecular interaction on excited states in p − DTS(FBTTH₂)₂
In: The Journal of Chemical Physics Bd. 144 (2016) Heft 7
doi:10.1063/1.4941700 ...

Singh, Shivam; Li, Cheng; Panzer, Fabian; Narasimhan, K. L.; Gräser, Anna; Gujar, Tanaji P.; Köhler, Anna; Thelakkat, Mukundan; Hüttner, Sven; Kabra, Dinesh
Effect of Thermal and Structural Disorder on the Electronic Structure of Hybrid Perovskite Semi ...
In: The Journal of Physical Chemistry Letters Bd. 7 (2016) . - S. 3014-3021
doi:10.1021/acs.jpclett.6b01207 ...

Li, Cheng; Zhong, Yu; Melo Luna, Carlos Andres; Unger, Thomas; Deichsel, Konstantin; Gräser, Anna; Köhler, Jürgen; Köhler, Anna; Hildner, Richard; Hüttner, Sven
Emission Enhancement and Intermittency in Polycrystalline Organolead Halide Perovskite Films
In: Molecules Bd. 21 (2016) Heft 8
doi:10.3390/molecules21081081 ...

Rudnick, Alexander; Bagnich, Sergey; Wagner, Daniel; Athanasopoulos, Stavros; Strohriegl, Peter; Köhler, Anna
The influence of torsion on excimer formation in bipolar host materials for blue phosphorescent ...
In: The Journal of Chemical Physics Bd. 144 (2016) Heft 21
doi:10.1063/1.4953102 ...

Knauer, Philipp; Hahn, Tobias; Köhler, Anna; Strohriegl, Peter
Initiator-free crosslinking of oxetane functionalized low bandgap polymers : an approach toward ...
In: Journal of Materials Chemistry C Bd. 4 (2016) Heft 43. - S. 10347-10357
doi:10.1039/c6tc03214a ...

Fishchuk, Ivan I.; Kadashchuk, Andrey; Bhoolokam, A.; de Jamblinne de Meux, A.; Pourtois, G.; Gavrilyuk, M. M.; Köhler, Anna; Bässler, Heinz; Heremans, Paul; Genoe, Jan
Interplay between hopping and band transport in high-mobility disordered semiconductors at larg ...
In: Physical Review B Bd. 93 (2016) Heft 19
doi:10.1103/PhysRevB.93.195204 ...

Li, Cheng; Tscheuschner, Steffen; Paulus, Fabian; Hopkinson, Paul E.; Kießling, Johannes; Köhler, Anna; Vaynzof, Yana; Hüttner, Sven
Iodine Migration and its Effect on Hysteresis in Perovskite Solar Cells
In: Advanced Materials Bd. 28 (2016) Heft 12. - S. 2446-2454
doi:10.1002/adma.201503832 ...

Panzer, Fabian; Baderschneider, Sebastian; Gujar, Tanaji P.; Unger, Thomas; Bagnich, Sergey; Jakoby, Marius; Bässler, Heinz; Hüttner, Sven; Köhler, Jürgen; Moos, Ralf; Thelakkat, Mukundan; Hildner, Richard; Köhler, Anna
Reversible Laser-Induced Amplified Spontaneous Emission from Coexisting Tetragonal and Orthorho ...
In: Advanced Optical Materials Bd. 4 (2016) Heft 6. - S. 917-928
doi:10.1002/adom.201500765 ...

Hahn, Tobias; Tscheuschner, Steffen; Saller, Christina; Strohriegl, Peter; Boregowda, Puttarraju; Mukhopadhyay, Tushita; Patil, Satish; Neher, Dieter; Bässler, Heinz; Köhler, Anna
Role of Intrinsic Photogeneration in Single Layer and Bilayer Solar Cells with C60 and PCBM
In: The Journal of Physical Chemistry C Bd. 120 (2016) Heft 43. - S. 25083-25091
doi:10.1021/acs.jpcc.6b08471 ...

Rahman, Md. Mostafizur; Younus, Muhammad; Naher, Masnun; Masud, Mostafa Kamal; Nomoto, Akihiro; Ogawa, Akiya; Rudnick, Alexander; Köhler, Anna
Synthesis, spectroscopic characterization, thermal and luminescent properties of new organosulf ...
In: Journal of Organometallic Chemistry Bd. 818 (2016) . - S. 185-194
doi:10.1016/j.jorganchem.2016.06.006 ...

Reichenberger, Markus; Baderschneider, Sebastian; Kroh, Daniel; Grauf, Steffen; Köhler, Jürgen; Hildner, Richard; Köhler, Anna
Watching Paint Dry : The Impact of Diiodooctane on the Kinetics of Aggregate Formation in Thin ...
In: Macromolecules Bd. 49 (2016) Heft 17. - S. 6420-6430
doi:10.1021/acs.macromol.6b01257 ...

2015

Tscheuschner, Steffen; Bässler, Heinz; Huber, Katja; Köhler, Anna
A Combined Theoretical and Experimental Study of Dissociation of Charge Transfer States at the ...
In: The Journal of Physical Chemistry B Bd. 119 (2015) Heft 32. - S. 10359-10371
doi:10.1021/acs.jpcb.5b05138 ...

Hahn, Tobias; Geiger, Johannes; Blase, Xavier; Duchemin, Ivan; Niedzialek, Dorota; Tscheuschner, Steffen; Beljonne, David; Bässler, Heinz; Köhler, Anna
Does Excess Energy Assist Photogeneration in an Organic Low-Bandgap Solar Cell?
In: Advanced Functional Materials Bd. 25 (2015) Heft 8. - S. 1287-1295
doi:10.1002/adfm.201403784 ...

Bagnich, Sergey; Athanasopoulos, Stavros; Rudnick, Alexander; Schrögel, Pamela; Bauer, Irene; Greenham, Neil C.; Strohriegl, Peter; Köhler, Anna
Excimer Formation by Steric Twisting in Carbazole and Triphenylamine-Based Host Materials
In: The Journal of Physical Chemistry C Bd. 119 (2015) Heft 5. - S. 2380-2387
doi:10.1021/jp512772j ...

Bässler, Heinz; Köhler, Anna
"Hot or cold" : how do charge transfer states at the donor–acceptor interface of an organic sol ...
In: Physical Chemistry Chemical Physics Bd. 17 (2015) Heft 43. - S. 28451-28462
doi:10.1039/C5CP04110D ...

Hahn, Tobias; Saller, Christina; Weigl, M.; Bauer, Irene; Unger, Thomas; Köhler, Anna; Strohriegl, Peter
Organic solar cells with crosslinked polymeric exciton blocking layer
In: Physica Status Solidi A Bd. 212 (2015) Heft 10. - S. 2162-2168
doi:10.1002/pssa.201532040 ...

Consani, Cristina; Koch, Federico; Panzer, Fabian; Unger, Thomas; Köhler, Anna; Brixner, Tobias
Relaxation dynamics and exciton energy transfer in the low-temperature phase of MEH-PPV
In: The Journal of Chemical Physics Bd. 142 (2015) Heft 21
doi:10.1063/1.4918645 ...

Scharsich, Christina; Fischer, Florian S. U.; Wilma, Kevin; Hildner, Richard; Ludwigs, Sabine; Köhler, Anna
Revealing structure formation in PCPDTBT by optical spectroscopy
In: Journal of Polymer Science Part B: Polymer Physics Bd. 53 (2015) Heft 20. - S. 1416-1430
doi:10.1002/polb.23780 ...

Panzer, Fabian; Sommer, Michael; Bässler, Heinz; Thelakkat, Mukundan; Köhler, Anna
Spectroscopic Signature of Two Distinct H-Aggregate Species in Poly(3-hexylthiophene)
In: Macromolecules Bd. 48 (2015) Heft 5. - S. 1543-1553
doi:10.1021/acs.macromol.5b00129 ...

Bagnich, Sergey; Rudnick, Alexander; Schrögel, Pamela; Strohriegl, Peter; Köhler, Anna
Triplet energies and excimer formation in meta- and para-linked carbazolebiphenyl matrix materi ...
In: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences Bd. 373 (2015) Heft 2044
doi:10.1098/rsta.2014.0446 ...

Unger, Thomas; Panzer, Fabian; Consani, Cristina; Koch, Federico; Brixner, Tobias; Bässler, Heinz; Köhler, Anna
Ultrafast Energy Transfer between Disordered and Highly Planarized Chains of Poly[2-methoxy-5-( ...
In: ACS Macro Letters Bd. 4 (2015) Heft 4. - S. 412-416
doi:10.1021/acsmacrolett.5b00133 ...

2014

Fishchuk, Ivan I.; Kadashchuk, Andrey; Hoffmann, Sebastian T.; Athanasopoulos, Stavros; Genoe, Jan; Bässler, Heinz; Köhler, Anna
Analytic model of hopping transport in organic semiconductors including both energetic disorder ...
Palassini, Matteo (Ed.):15th International Conference on Transport in Interacting Disordered Systems (TIDS15)
Melville, NY : AIP Publishing, 2014. - S. 47-52 . - (AIP Conference Proceedings; 1610)
doi:10.1063/1.4893509 ...

Schwarz, Christian; Milan, Felix; Hahn, Tobias; Reichenberger, Markus; Kümmel, Stephan; Köhler, Anna
Ground State Bleaching at Donor–Acceptor Interfaces
In: Advanced Functional Materials Bd. 24 (2014) Heft 41. - S. 6439-6448
doi:10.1002/adfm.201400297 ...

Panzer, Fabian; Bässler, Heinz; Lohwasser, Ruth; Thelakkat, Mukundan; Köhler, Anna
The Impact of Polydispersity and Molecular Weight on the Order–Disorder Transition in Poly(3-he ...
In: The Journal of Physical Chemistry Letters Bd. 5 (2014) Heft 15. - S. 2742-2747
doi:10.1021/jz5009938 ...

Neumann, Katharina; Schwarz, Christian; Köhler, Anna; Thelakkat, Mukundan
Influence of the Excited-State Charge-Transfer Character on the Exciton Dissociation in Donor–A ...
In: The Journal of Physical Chemistry C Bd. 118 (2014) Heft 1. - S. 27-36
doi:10.1021/jp407014q ...

Fischer, Florian; Hahn, Tobias; Bässler, Heinz; Bauer, Irene; Strohriegl, Peter; Köhler, Anna
Measuring Reduced C60 Diffusion in Crosslinked Polymer Films by Optical Spectroscopy
In: Advanced Functional Materials Bd. 24 (2014) Heft 39. - S. 6172-6177
doi:10.1002/adfm.201401153 ...

Fishchuk, Ivan I.; Kadashchuk, Andrey; Mityashin, Alexander; Gavrilyuk, M. M.; Köhler, Anna; Bässler, Heinz; Genoe, Jan; Sitter, H.; Sariciftci, N. S.
Origin of Meyer-Neldel type compensation behavior in organic semiconductors at large carrier co ...
In: Physical Review B Bd. 90 (2014) Heft 24
doi:10.1103/PhysRevB.90.245201 ...

Ling, Jun; Zheng, Zhicheng; Köhler, Anna; Müller, Axel H. E.
Rod-Like Nano-Light Harvester
In: Macromolecular Rapid Communications Bd. 35 (2014) Heft 1. - S. 52-55
doi:10.1002/marc.201300785 ...

2013

Haedler, Andreas T.; Misslitz, Holger; Bühlmeyer, Christian; Albuquerque, Rodrigo Q.; Köhler, Anna; Schmidt, Hans-Werner
Controlling the π-Stacking Behavior of Pyrene Derivatives : Influence of H-Bonding and Steric E ...
In: ChemPhysChem Bd. 14 (2013) Heft 9. - S. 1818-1829
doi:10.1002/cphc.201300242 ...

Hoffmann, Sebastian T.; Jaiser, Frank; Hayer, Anna; Bässler, Heinz; Unger, Thomas; Athanasopoulos, Stavros; Neher, Dieter; Köhler, Anna
How Do Disorder, Reorganization, and Localization Influence the Hole Mobility in Conjugated Cop ...
In: Journal of the American Chemical Society Bd. 135 (2013) Heft 5. - S. 1772-1782
doi:10.1021/ja308820j ...

Strohriegl, Peter; Wagner, Daniel; Schrögel, Pamela; Hoffmann, Sebastian T.; Köhler, Anna; Heinemeyer, Ute; Münster, Ingo
Novel host materials for blue phosphorescent OLEDs
So, Franky (Hrsg.): Organic light emitting materials and devices XVII
Bellingham, Washington : SPIE, 2013 (Proceedings / SPIE, International Society for Optical Engineering; 8829)
doi:10.1117/12.2023305 ...

Yamagata, Hajime; Hestand, Nicholas J.; Spano, Frank C.; Köhler, Anna; Scharsich, Christina; Hoffmann, Sebastian T.; Bässler, Heinz
The red-phase of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) : A disord ...
In: The Journal of Chemical Physics Bd. 139 (2013) Heft 11
doi:10.1063/1.4819906 ...

Schwarz, Christian; Tscheuschner, Steffen; Frisch, Johannes; Winkler, Stefanie; Koch, Norbert; Bässler, Heinz; Köhler, Anna
Role of the effective mass and interfacial dipoles on exciton dissociation in organic donor-acc ...
In: Physical Review B Bd. 87 (2013) Heft 15
doi:10.1103/PhysRevB.87.155205 ...

Athanasopoulos, Stavros; Hoffmann, Sebastian T.; Bässler, Heinz; Köhler, Anna; Beljonne, David
To Hop or Not to Hop? Understanding the Temperature Dependence of Spectral Diffusion in Organic ...
In: The Journal of Physical Chemistry Letters Bd. 4 (2013) Heft 10. - S. 1694-1700
doi:10.1021/jz400480a ...

Wagner, Daniel; Hoffmann, Sebastian T.; Heinemeyer, Ute; Münster, Ingo; Köhler, Anna; Strohriegl, Peter
Triazine Based Bipolar Host Materials for Blue Phosphorescent OLEDs
In: Chemistry of Materials Bd. 25 (2013) Heft 18. - S. 3758-3765
doi:10.1021/cm4023216 ...

Fishchuk, Ivan I.; Kadashchuk, Andrey; Hoffmann, Sebastian T.; Athanasopoulos, Stavros; Genoe, Jan; Bässler, Heinz; Köhler, Anna
Unified description for hopping transport in organic semiconductors including both energetic di ...
In: Physical Review B Bd. 88 (2013) Heft 12
doi:10.1103/PhysRevB.88.125202 ...

2012

Scharsich, Christina; Lohwasser, Ruth H.; Sommer, Michael; Asawapirom, Udom; Scherf, Ullrich; Thelakkat, Mukundan; Neher, Dieter; Köhler, Anna
Control of aggregate formation in poly(3-hexylthiophene) by solvent, molecular weight, and synt ...
In: Journal of Polymer Science Part B: Polymer Physics Bd. 50 (2012) Heft 6. - S. 442-453
doi:10.1002/polb.23022 ...

Schwarz, Christian; Bässler, Heinz; Bauer, Irene; Koenen, Jan-Moritz; Preis, Eduard; Scherf, Ullrich; Köhler, Anna
Does Conjugation Help Exciton Dissociation? A Study on Poly(p-phenylene)s in Planar Heterojunct ...
In: Advanced Materials Bd. 24 (2012) Heft 7. - S. 922-925
doi:10.1002/adma.201104063 ...

Hoffmann, Sebastian T.; Athanasopoulos, Stavros; Beljonne, David; Bässler, Heinz; Köhler, Anna
How do Triplets and Charges Move in Disordered Organic Semiconductors? A Monte Carlo Study Comp ...
In: The Journal of Physical Chemistry C Bd. 116 (2012) Heft 31. - S. 16371-16383
doi:10.1021/jp305062p ...

Hayer, Anna; van Regemorter, Tanguy; Höfer, Bianca; Mak, Chris S. K.; Beljonne, David; Köhler, Anna
On the formation mechanism for electrically generated exciplexes in a carbazole–pyridine copoly ...
In: Journal of Polymer Science Part B: Polymer Physics Bd. 50 (2012) Heft 5. - S. 361-369
doi:10.1002/polb.23011 ...

Köhler, Anna; Hoffmann, Sebastian T.; Bässler, Heinz
An Order–Disorder Transition in the Conjugated Polymer MEH-PPV
In: Journal of the American Chemical Society Bd. 134 (2012) Heft 28. - S. 11594-11601
doi:10.1021/ja302408a ...

Köhler, Anna
Organic semiconductors : no more breaks for electrons
In: Nature Materials Bd. 11 (2012) Heft 10. - S. 836-837
doi:10.1038/nmat3427 ...

Köhler, Anna; Khan, Amena L. T.; Wilson, Joanne S.; Dosche, Carsten; Al-Suti, Mohammed K.; Shah, Hakikulla H.; Khan, Muhammad S.
The role of C-H and C-C stretching modes in the intrinsic non-radiative decay of triplet states ...
In: The Journal of Chemical Physics Bd. 136 (2012) Heft 9
doi:10.1063/1.3691105 ...

Stöcker, Thomas; Köhler, Anna; Moos, Ralf
Why does the electrical conductivity in PEDOT:PSS decrease with PSS content? A study combining ...
In: Journal of Polymer Science Part B: Polymer Physics Bd. 50 (2012) Heft 14. - S. 976-983
doi:10.1002/polb.23089 ...

2011

Albuquerque, Rodrigo Q.; Hofmann, Christiane C.; Köhler, Jürgen; Köhler, Anna
Diffusion-Limited Energy Transfer in Blends of Oligofluorenes with an Anthracene Derivative
In: The Journal of Physical Chemistry B Bd. 115 (2011) Heft 25. - S. 8063-8070
doi:10.1021/jp202333w ...

Herrmann, Daniel; Niesar, Sabrina; Scharsich, Christina; Köhler, Anna; Stutzmann, Martin; Riedle, Eberhard
Role of Structural Order and Excess Energy on Ultrafast Free Charge Generation in Hybrid Polyth ...
In: Journal of the American Chemical Society Bd. 133 (2011) Heft 45. - S. 18220-18233
doi:10.1021/ja207887q ...

Schrögel, Pamela; Tomkevičienė, Aušra; Strohriegl, Peter; Hoffmann, Sebastian T.; Köhler, Anna; Lennartz, Christian
A series of CBP-derivatives as host materials for blue phosphorescent organic light-emitting di ...
In: Journal of Materials Chemistry Bd. 21 (2011) Heft 7. - S. 2266-2273
doi:10.1039/C0JM03321A ...

Khan, Muhammad S.; Al-Suti, Mohammed K.; Shah, Hakikulla H.; Al-Humaimi, Said; Al-Battashi, Fathiya R.; Bjernemose, Jens K.; Male, Louise; Raithby, Paul R.; Zhang, Ning; Köhler, Anna; Warren, John E.
Synthesis and characterization of platinum(II) di-ynes and poly-ynes incorporating ethylenediox ...
In: Dalton Transactions Bd. 40 (2011) . - S. 10174-10183
doi:10.1039/C1DT11010A ...

Hoffmann, Sebastian T.; Schrögel, Pamela; Rothmann, Michael; Albuquerque, Rodrigo Q.; Strohriegl, Peter; Köhler, Anna
Triplet Excimer Emission in a Series of 4,4′-Bis(N-carbazolyl)-2,2′-biphenyl Derivatives
In: The Journal of Physical Chemistry B Bd. 115 (2011) Heft 3. - S. 414-421
doi:10.1021/jp107408e ...

Hoffmann, Sebastian T.; Koenen, Jan-Moritz; Scherf, Ullrich; Bauer, Irene; Strohriegl, Peter; Bässler, Heinz; Köhler, Anna
Triplet–Triplet Annihilation in a Series of Poly(p-phenylene) Derivatives
In: The Journal of Physical Chemistry B Bd. 115 (2011) Heft 26. - S. 8417-8423
doi:10.1021/jp202763e ...

Köhler, Anna; Bässler, Heinz
What controls triplet exciton transfer in organic semiconductors?
In: Journal of Materials Chemistry Bd. 21 (2011) Heft 12. - S. 4003-4011
doi:10.1039/C0JM02886J ...

2010

Thesen, Manuel W.; Höfer, Bianca; Debeaux, Marc; Janietz, Silvia; Wedel, Armin; Köhler, Anna; Johannes, Hans-Hermann; Krüger, Hartmut
Hole-transporting host-polymer series consisting of triphenylamine basic structures for phospho ...
In: Journal of Polymer Science Part A: Polymer Chemistry Bd. 48 (2010) Heft 15. - S. 3417-3430
doi:10.1002/pola.24127 ...

Hoffmann, Sebastian T.; Bässler, Heinz; Koenen, Jan-Moritz; Forster, Michael; Scherf, Ullrich; Scheler, Esther; Strohriegl, Peter; Köhler, Anna
Spectral diffusion in poly(para-phenylene)-type polymers with different energetic disorder
In: Physical Review B Bd. 81 (2010) Heft 11
doi:10.1103/PhysRevB.81.115103 ...

Hoffmann, Sebastian T.; Scheler, Esther; Koenen, Jan-Moritz; Forster, Michael; Scherf, Ullrich; Strohriegl, Peter; Bässler, Heinz; Köhler, Anna
Triplet energy transfer in conjugated polymers. III. An experimental assessment regarding the i ...
In: Physical Review B Bd. 81 (2010) Heft 16
doi:10.1103/PhysRevB.81.165208 ...

Hoffmann, Sebastian T.; Bässler, Heinz; Köhler, Anna
What Determines Inhomogeneous Broadening of Electronic Transitions in Conjugated Polymers?
In: The Journal of Physical Chemistry B Bd. 114 (2010) Heft 51. - S. 17037-17048
doi:10.1021/jp107357y ...

2009

Devi, Lekshmi Sudha; Al-Suti, Mohammed K.; Zhang, Ning; Teat, Simon J.; Male, Louise; Sparkes, Hazel A.; Raithby, Paul R.; Khan, Muhammad S.; Köhler, Anna
Synthesis and Comparison of the Optical Properties of Platinum(II) Poly-ynes with Fused and Non ...
In: Macromolecules Bd. 42 (2009) Heft 4. - S. 1131-1141
doi:10.1021/ma802399a ...

Köhler, Anna; Bässler, Heinz
Triplet states in organic semiconductors
In: Materials Science and Engineering: R: Reports Bd. 66 (2009) Heft 4/6. - S. 71-109
doi:10.1016/j.mser.2009.09.001 ...

2008

Aharon, Eyal; Breuer, Steffen; Jaiser, Frank; Köhler, Anna; Frey, Gitti L.
Effect of the Solvent on the Conformation of Isolated MEH-PPV Chains Intercalated Into SnS2
In: ChemPhysChem Bd. 9 (2008) Heft 10. - S. 1430-1436
doi:10.1002/cphc.200800109 ...

Schütz, Christoph; Höfer, Bianca; Jaiser, Frank; Krüger, Hartmut; Thesen, Manuel W.; Janietz, Silvia; Köhler, Anna
Exciton dynamics in blends of phosphorescent emitters
In: Physica Status Solidi B Bd. 245 (2008) Heft 5. - S. 810-813
doi:10.1002/pssb.200743441 ...

Devi, Lekshmi Sudha; Al-Suti, Mohammed K.; Dosche, Carsten; Khan, Muhammad S.; Friend, Richard H.; Köhler, Anna
Triplet energy transfer in conjugated polymers. I. Experimental investigation of a weakly disor ...
In: Physical Review B Bd. 78 (2008) Heft 4
doi:10.1103/PhysRevB.78.045210 ...

Fishchuk, Ivan I.; Kadashchuk, Andrey; Devi, Lekshmi Sudha; Heremans, Paul; Bässler, Heinz; Köhler, Anna
Triplet energy transfer in conjugated polymers. II. A polaron theory description addressing the ...
In: Physical Review B Bd. 78 (2008) Heft 4
doi:10.1103/PhysRevB.78.045211 ...

2007

Parkinson, P.; Aharon, Eyal; Chang, M. H.; Dosche, Carsten; Frey, Gitti L.; Köhler, Anna; Herz, Laura M.
Dimensionality-dependent energy transfer in polymer-intercalated SnS2 nanocomposites
In: Physical Review B Bd. 75 (2007) Heft 16
doi:10.1103/PhysRevB.75.165206 ...

2006

Zhang, Ning; Hayer, Anna; Al-Suti, Mohammed K.; Al-Belushi, Rayya A.; Khan, Muhammad S.; Köhler, Anna
The effect of delocalization on the exchange energy in meta- and para-linked Pt-containing carb ...
In: The Journal of Chemical Physics Bd. 124 (2006) Heft 24
doi:10.1063/1.2200351 ...

Hayer, Anna; de Halleux, Véronique; Köhler, Anna; El-Garoughy, Abdel; Meijer, Egbert W.; Barberá, Joaquin; Tant, Julien; Levin, Jeremy; Lehmann, Matthias; Gierschner, Johannes; Cornil, Jérôme; Geerts, Yves
Highly Fluorescent Crystalline and Liquid Crystalline Columnar Phases of Pyrene-Based Structure ...
In: The Journal of Physical Chemistry B Bd. 110 (2006) Heft 15. - S. 7653-7659
doi:10.1021/jp0573689 ...

Evans, Nicholas R.; Devi, Lekshmi Sudha; Mak, Chris S. K.; Watkins, Scott E.; Pascu, Sofia I.; Köhler, Anna; Friend, Richard H.; Williams, Charlotte K.; Holmes, Andrew B.
Triplet Energy Back Transfer in Conjugated Polymers with Pendant Phosphorescent Iridium Complex ...
In: Journal of the American Chemical Society Bd. 128 (2006) Heft 20. - S. 6647-6656
doi:10.1021/ja0584267 ...

2005

Mak, Chris S. K.; Hayer, Anna; Pascu, Sofia I.; Watkins, Scott E.; Holmes, Andrew B.; Köhler, Anna; Friend, Richard H.
Blue-to-green electrophosphorescence of iridium-based cyclometallated materials
In: Chemical Communications (2005) Heft 37. - S. 4708-4710
doi:10.1039/B508695G ...

Mermer, Ö.; Veeraraghavan, G.; Francis, T. L.; Sheng, Y.; Nguyen, D. T.; Wohlgenannt, M.; Köhler, Anna; Al-Suti, Mohammed K.; Khan, Muhammad S.
Large magnetoresistance in nonmagnetic π-conjugated semiconductor thin film devices
In: Physical Review B Bd. 72 (2005) Heft 20
doi:10.1103/PhysRevB.72.205202 ...

Hayer, Anna; Khan, Amena L. T.; Friend, Richard H.; Köhler, Anna
Morphology dependence of the triplet excited state formation and absorption in polyfluorene
In: Physical Review B Bd. 71 (2005) Heft 24
doi:10.1103/PhysRevB.71.241302 ...

2004

Khan, Amena L. T.; Sreearunothai, Paiboon; Herz, Laura M.; Banach, Michael J.; Köhler, Anna
Morphology-dependent energy transfer within polyfluorene thin films
In: Physical Review B Bd. 69 (2004) Heft 8
doi:10.1103/PhysRevB.69.085201 ...

Hayer, Anna; Köhler, Anna; Arisi, E.; Bergenti, I.; Dediu, A.; Taliani, C.; Al-Suti, Mohammed K.; Khan, Muhammad S.
Polymer light-emitting diodes with spin-polarised charge injection
In: Synthetic Metals Bd. 147 (2004) . - S. 155-158
doi:10.1016/j.synthmet.2004.06.031 ...

Köhler, Anna; Beljonne, David
The Singlet–Triplet Exchange Energy in Conjugated Polymers
In: Advanced Functional Materials Bd. 14 (2004) Heft 1. - S. 11-18
doi:10.1002/adfm.200305032 ...

Sandee, Albertus J.; Williams, Charlotte K.; Evans, Nicholas R.; Davies, John E.; Boothby, Clare E.; Köhler, Anna; Friend, Richard H.; Holmes, Andrew B.
Solution-Processible Conjugated Electrophosphorescent Polymers
In: Journal of the American Chemical Society Bd. 126 (2004) Heft 22. - S. 7041-7048
doi:10.1021/ja039445o ...

Yang, C.; Vardeny, Z. V.; Köhler, Anna; Wohlgenannt, M.; Al-Suti, Mohammed K.; Khan, Muhammad S.
Spectroscopic study of spin-dependent exciton formation rates in π-conjugated semiconductors: C ...
In: Physical Review B Bd. 70 (2004) Heft 24
doi:10.1103/PhysRevB.70.241202 ...

Khan, Muhammad S.; Al-Mandhary, Muna R. A.; Al-Suti, Mohammed K.; Al-Battashi, Fathiya R.; Al-Saadi, Sultan; Ahrens, Birte; Bjernemose, Jens K.; Mahon, Mary F.; Raithby, Paul R.; Younus, Muhammad; Chawdhury, Nazia; Köhler, Anna; Marseglia, Elizabeth A.; Tedesco, Emilio; Feeder, Neil; Teat, Simon J.
Synthesis, characterisation and optical spectroscopy of platinum(II) di-ynes and poly-ynes inco ...
In: Dalton Transactions (2004) Heft 15. - S. 2377-2385
doi:10.1039/B405070C ...

2003

Khan, Amena L. T.; Banach, Michael J.; Köhler, Anna
Control of β-phase formation in polyfluorene thin films via Franck–Condon analysis
In: Synthetic Metals Bd. 139 (2003) Heft 3. - S. 905-907
doi:10.1016/S0379-6779(03)00244-3 ...

Brown, Peter J.; Thomas, D. Steve; Köhler, Anna; Wilson, Joanne S.; Kim, Ji-Seon; Ramsdale, Catherine M.; Sirringhaus, Henning; Friend, Richard H.
Effect of interchain interactions on the absorption and emission of poly(3-hexylthiophene)
In: Physical Review B Bd. 67 (2003) Heft 6
doi:10.1103/PhysRevB.67.064203 ...

Johnston, Michael B.; Herz, Laura M.; Khan, Amena L. T.; Köhler, Anna; Davies, A. G.; Linfield, E. H.
Low-energy vibrational modes in phenylene oligomers studied by THz time-domain spectroscopy
In: Chemical Physics Letters Bd. 377 (2003) Heft 1-2. - S. 256-262
doi:10.1016/S0009-2614(03)01136-9 ...

Köhler, Anna; Wilson, Joanne S.
Phosphorescence and spin-dependent exciton formation in conjugated polymers
In: Organic Electronics Bd. 4 (2003) Heft 2-3. - S. 179-189
doi:10.1016/j.orgel.2003.08.011 ...

Wilson, Joanne S.; Wilson, R. J.; Friend, Richard H.; Köhler, Anna; Al-Suti, Mohammed K.; Al-Mandhary, Muna R. A.; Khan, Muhammad S.
Polarization of singlet and triplet excited states in a platinum-containing conjugated polymer
In: Physical Review B Bd. 67 (2003) Heft 12
doi:10.1103/PhysRevB.67.125206 ...

Khan, Muhammad S.; Al-Suti, Mohammed K.; Al-Mandhary, Muna R. A.; Ahrens, Birte; Bjernemose, Jens K.; Mahon, Mary F.; Male, Louise; Raithby, Paul R.; Friend, Richard H.; Köhler, Anna; Wilson, Joanne S.
Synthesis and characterisation of new acetylide-functionalised aromatic and hetero-aromatic lig ...
In: Dalton Transactions (2003) Heft 1. - S. 65-73
doi:10.1039/B208494E ...

Khan, Muhammad S.; Al-Mandhary, Muna R. A.; Al-Suti, Mohammed K.; Corcoran, Timothy C.; Al-Mahrooqi, Yaqoub; Attfield, J. Paul; Feeder, Neil; David, William I. F.; Shankland, Kenneth; Friend, Richard H.; Köhler, Anna; Marseglia, Elizabeth A.; Tedesco, Emilio; Tang, Chiu C.; Raithby, Paul R.; Collings, Jonathan C.; Roscoe, Karl P.; Batsanov, Andrei S.; Stimson, Lorna M.; Marder, Todd B.
Synthesis and optical characterisation of platinum(II) poly-yne polymers incorporating substitu ...
In: New Journal of Chemistry Bd. 27 (2003) Heft 1. - S. 140-149
doi:10.1039/B206946F ...

Khan, Muhammad S.; Al-Mandhary, Muna R. A.; Al-Suti, Mohammed K.; Ahrens, Birte; Mahon, Mary F.; Male, Louise; Raithby, Paul R.; Boothby, Clare E.; Köhler, Anna
Synthesis, characterisation and optical spectroscopy of diynes and poly-ynes containing derivat ...
In: Dalton Transactions (2003) Heft 1. - S. 74-84
doi:10.1039/B208963G ...

2002

Köhler, Anna; Wilson, Joanne S.; Friend, Richard H.
Fluorescence and Phosphorescence in Organic Materials
In: Advanced Engineering Materials Bd. 4 (2002) Heft 7. - S. 453-459
doi:10.1002/1527-2648(20020717)4:7<453::AID-ADEM45 ...

Köhler, Anna; Wilson, Joanne S.; Friend, Richard H.; Al-Suti, Mohammed K.; Khan, Muhammad S.; Gerhard, A.; Bässler, Heinz
The singlet–triplet energy gap in organic and Pt-containing phenylene ethynylene polymers and m ...
In: The Journal of Chemical Physics Bd. 116 (2002) Heft 21. - S. 9457-9463
doi:10.1063/1.1473194 ...

Khan, Muhammad S.; Al-Mandhary, Muna R. A.; Al-Suti, Mohammed K.; Hisahm, Abdul Khader; Raithby, Paul R.; Ahrens, Birte; Mahon, Mary F.; Male, Louise; Marseglia, Elizabeth A.; Tedesco, Emilio; Friend, Richard H.; Köhler, Anna; Feeder, Neil; Teat, Simon J.
Structural characterisation of a series of acetylide-functionalised oligopyridines and the synt ...
In: Dalton Transactions (2002) Heft 7. - S. 1358-1368
doi:10.1039/B110658A ...

Khan, Muhammad S.; Al-Mandhary, Muna R. A.; Al-Suti, Mohammed K.; Feeder, Neil; Nahar, Saifun; Köhler, Anna; Friend, Richard H.; Wilson, Paul J.; Raithby, Paul R.
Synthesis, characterisation and electronic properties of a series of platinum(II) poly-ynes con ...
In: Dalton Transactions (2002) Heft 12. - S. 2441-2448
doi:10.1039/B201073A ...

2001

Wilson, Joanne S.; Chawdhury, Nazia; Al-Mandhary, Muna R. A.; Younus, Muhammad; Khan, Muhammad S.; Raithby, Paul R.; Köhler, Anna; Friend, Richard H.
The Energy Gap Law for Triplet States in Pt-Containing Conjugated Polymers and Monomers
In: Journal of the American Chemical Society Bd. 123 (2001) Heft 38. - S. 9412-9417
doi:10.1021/ja010986s ...

Wilson, Joanne S.; Dhoot, A. S.; Seeley, A. J. A. B.; Khan, Muhammad S.; Köhler, Anna; Friend, Richard H.
Spin-dependent exciton formation in pi-conjugated compounds
In: Nature Bd. 413 (2001) . - S. 828-831
doi:10.1038/35101565 ...

2000

Wilson, Joanne S.; Köhler, Anna; Friend, Richard H.; Al-Suti, Mohammed K.; Al-Mandhary, Muna R. A.; Khan, Muhammad S.; Raithby, Paul R.
Triplet states in a series of Pt-containing ethynylenes
In: The Journal of Chemical Physics Bd. 113 (2000) Heft 17. - S. 7627-7634
doi:10.1063/1.1313527 ...

1999

Köhler, Anna; Younus, Muhammad; Al-Mandhary, Muna R. A.; Raithby, Paul R.; Khan, Muhammad S.; Friend, Richard H.
Donor-acceptor interactions in organometallic and organic poly-ynes
In: Synthetic Metals Bd. 101 (1999) Heft 1-3. - S. 246-247
doi:10.1016/S0379-6779(98)01360-5 ...

Chawdhury, Nazia; Köhler, Anna; Friend, Richard H.; Wong, W.-Y.; Lewis, Jack; Younus, Muhammad; Raithby, Paul R.; Corcoran, Timothy C.; Al-Mandhary, Muna R. A.; Khan, Muhammad S.
Evolution of lowest singlet and triplet excited states with number of thienyl rings in platinum ...
In: The Journal of Chemical Physics Bd. 110 (1999) Heft 10. - S. 4963-4970
doi:10.1063/1.478382 ...

1998

Köhler, Anna; dos Santos, D. A.; Beljonne, David; Shuai, Z.; Bredas, J.-L.; Holmes, Andrew B.; Kraus, Andreas; Müllen, Klaus; Friend, Richard H.
Charge separation in localized and delocalized electronic states in polymeric semiconductors
In: Nature Bd. 392 (1998) . - S. 903-906
doi:10.1038/31901 ...

Chawdhury, Nazia; Köhler, Anna; Friend, Richard H.; Younus, Muhammad; Long, Nicholas J.; Raithby, Paul R.; Lewis, Jack
Synthesis and Electronic Structure of Platinum-Containing Poly-ynes with Aromatic and Heteroaro ...
In: Macromolecules Bd. 31 (1998) Heft 3. - S. 722-727
doi:10.1021/ma971267u ...

Younus, Muhammad; Köhler, Anna; Cron, Stephane; Chawdhury, Nazia; Al-Mandhary, Muna R. A.; Khan, Muhammad S.; Lewis, Jack; Long, Nicholas J.; Friend, Richard H.; Raithby, Paul R.
Synthesis, Electrochemistry, and Spectroscopy of Blue Platinum(II) Polyynes and Diynes
In: Angewandte Chemie International Edition Bd. 37 (1998) Heft 21. - S. 3036-3039
doi:10.1002/(SICI)1521-3773(19981116)37:21<3036::A ...

1997

Friend, Richard H.; Denton, G. J.; Halls, J. J. M.; Harrison, N. T.; Holmes, Andrew B.; Köhler, Anna; Lux, A.; Moratti, S. C.; Pichler, K.; Tessler, N.; Towns, K.; Wittmann, H. F.
Electronic excitations in luminescent conjugated polymers
In: Solid State Communications Bd. 102 (1997) Heft 2-3. - S. 249-258
doi:10.1016/S0038-1098(96)00715-6 ...

Friend, Richard H.; Denton, G. J.; Halls, J. J. M.; Harrison, N. T.; Holmes, Andrew B.; Köhler, Anna; Lux, A.; Moratti, S. C.; Pichler, K.; Tessler, N.; Towns, K.
Electronic Processes of Conjugated Polymers in Semiconductor Device Structures
In: Synthetic Metals Bd. 84 (1997) Heft 1-3. - S. 463-470
doi:10.1016/S0379-6779(97)80830-2 ...

Köhler, Anna; dos Santos, D. A.; Beljonne, David; Shuai, Z.; Bredas, J.-L.; Friend, Richard H.; Moratti, S. C.; Holmes, Andrew B.
UV photocurrent spectroscopy in poly(p-phenylene vinylene) and derivatives
In: Synthetic Metals Bd. 84 (1997) Heft 1-3. - S. 675-676
doi:10.1016/S0379-6779(96)04104-5 ...

1996

Köhler, Anna; Wittmann, H. F.; Friend, Richard H.; Khan, Muhammad S.; Lewis, Jack
Enhanced photocurrent response in photocells made with platinum-poly-yne/C60 blends by photoind ...
In: Synthetic Metals Bd. 77 (1996) Heft 1-3. - S. 147-150
doi:10.1016/0379-6779(96)80076-2 ...

Beljonne, David; Wittmann, H. F.; Köhler, Anna; Graham, S.; Younus, Muhammad; Lewis, Jack; Raithby, Paul R.; Khan, Muhammad S.; Friend, Richard H.; Bredas, J.-L.
Spatial extent of the singlet and triplet excitons in transition metal‐containing poly‐ynes
In: The Journal of Chemical Physics Bd. 105 (1996) Heft 9. - S. 3868-3877
doi:10.1063/1.472207 ...

Cervini, R.; Holmes, Andrew B.; Moratti, S. C.; Köhler, Anna; Friend, Richard H.
Synthesis of new conjugated thiophene polymers
In: Synthetic Metals Bd. 76 (1996) Heft 1-3. - S. 169-171
doi:10.1016/0379-6779(95)03445-P ...

1995

Köhler, Anna; Grüner, J.; Friend, Richard H.; Müllen, Klaus; Scherf, Ullrich
Photocurrent measurements on aggregates in ladder-type poly(p-phenylene)
In: Chemical Physics Letters Bd. 243 (1995) Heft 5-6. - S. 456-461
doi:10.1016/0009-2614(95)00840-Z ...

1994

Köhler, Anna; Wittmann, H. F.; Friend, Richard H.; Khan, Muhammad S.; Lewis, Jack
The photovoltaic effect in a platinum poly-yne
In: Synthetic Metals Bd. 67 (1994) Heft 1-3. - S. 245-249
doi:10.1016/0379-6779(94)90050-7 ...

Prof. Dr. Anna Köhler

Fakultät für Mathematik, Physik und Informatik
Lehrstuhl für Experimentalphysik II


Prof. Dr. Anna Köhler

Fachgruppe Physik

Universität Bayreuth
Universitätsstraße 30
95447 Bayreuth

Telefon: +49 (0)921 / 55-2600
E-Mail: anna.koehler@uni-bayreuth.de
Homepage: Lehrstuhl für Experimentalphysik II

Verantwortlich für die Redaktion: Univ.Prof.Dr. Hans-Werner Schmidt

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