Johannes Ress, MMC Agentur

Arbeitsgruppe Prof. Dr. Anna Köhler für organische Halbleiter am Lehrstuhl Experimentalphysik 2
Lehrstuhl für Optoelektronik weicher Materie,
Experimentalphysik II
Arbeitsgruppe Prof. Dr. Anna Köhler

Books, Book Chapters and Reviews

 

 

Research Articles

Impact of excess PbI2 on the structure and the temperature dependent optical properties of methylammonium lead iodide perovskites

Research Area #1

Tobias Meier, Tanaji P. Gujar, Andreas Schönleber, Selina Olthof, Klaus Meerholz, Sander van Smaalen, Fabian Panzer, Mukundan Thelakkat and Anna Köhler

J. Mater. Chem. C 6 (2018) 7512-7519

Unraveling the Role of Multiphonon Excitations and Disorder Concerning the Meyer-Neldel Type Compensation Effect in Organic Semiconductors

Research Area #2

Ivan I. Fishchuk, Heinz Bässler, Anna Köhler, Jan Genoe and Andrey Kadashchuk

Phys. Rev. Applied 10, 054063

Setup to Study the in Situ Evolution of Both Photoluminescence and Absorption during the Processing of Organic or Hybrid Semiconductors

Research Area #3

Michael Buchhorn, Stefan Wedler and Fabian Panzer

J. Phys. Chem. A, 122 (2018) 9115–9122

Elucidating Aggregation Pathways in the Donor−Acceptor Type Molecules p‑DTS(FBTTh2)2 and p‑SIDT(FBTTh2)2

Axel Bourdick, Markus Reichenberger, Stefan Wedler, Anna Stradomska, Guillermo C. Bazan, Thuc Quyen Nguyen, Anna Köhler and Stephan Gekle

J. Phys. Chem. B 122 (2018) 9191−9201

Organic Bidirectional Phototransistors Based on Diketopyrrolopyrrole and Fullerene

Frank‐Julian Kahle, Tobias Hahn, Tushita Mukhopadhyay, Boregowda Puttaraju, Satish Patil and Anna Köhler

Adv. Funct. Mater. (2018) 1805684

Does Electron Delocalization Influence Charge Separation at Donor–Acceptor Interfaces in Organic Photovoltaic Cells?

Frank-Julian Kahle, Christina Saller, Selina Olthof, Cheng Li, Jenny Lebert, Sebastian Weiß, Eva M. Herzig, Sven Hüttner, Klaus Meerholz, Peter Strohriegl and Anna Köhler

J. Phys. Chem. C 122 (2018) 21792 - 21802

Facile Synthesis and Chain‐Length Dependence of the Optical and Structural Properties of Diketopyrrolopyrrole‐Based Oligomers

Tushita Mukhopadhyay, Dr. Boregowda Puttaraju, Palas Roy, Prof. Dr. Jyotishman Dasgupta, Dr. Andreas Meyer, Alexander Rudnick, Dr. Steffen Tscheuschner, Frank‐Julian Kahle, Prof. Dr. Anna Köhler and Dr. Satish Patil

Chem. Eur. J. 23 (2017) 13718 – 13723

Negative field-dependent charge mobility in crystalline organic semiconductors with delocalized transport

Andrey Kadashchuk, Robby Janneck, Fei Tong, Ivan I. Fishchuk, Alexander Mityashin, Egon Pavlica, Anna Köhler, Paul Heremans, Cedric Rolin, Gvido Bratina and Jan Genoe

Chemical Papers 72 (2018) 1685–1695

Extracting structural information from MEH-PPV optical spectra

Jonathan D. Milward, Max Marcus, Anna Köhler and William Barford

J. Chem. Phys. 149, (2018) 044903

Facile Method for the Investigation of Temperature-Dependent C60 Diffusion in Conjugated Polymers

Christina Saller, Frank-Julian Kahle, Thomas Müller, Tobias Hahn, Steffen Tscheuschner, Denys Priadko, Peter Strohriegl, Heinz Bässler and Anna Köhler

ACS Appl. Mater. Interfaces 10 (2018) 21499−21509

How to interpret absorption and fluorescence spectra of charge transfer states in an organic solar cell

Frank-Julian Kahle, Alexander Rudnick, Heinz Bässler and Anna Köhler

Mater. Horiz., 2018,

Impact of excess PbI2 on the structure and the temperature dependent optical properties of methylammonium lead iodide perovskites

Tobias Meier, Tanaji P. Gujar, Andreas Schönleber, Selina Olthof, Klaus Meerholz, Sander van Smaalen, Fabian Panzer, Mukundan Thelakkat and Anna Köhler

J. Mater. Chem. C, 6 (2018) 7512 - 7519

Structural Information for Conjugated Polymers from Optical Modeling

Max Marcus , Jonathan D. Milward , Anna Köhler and William Barford

J. Phys. Chem. A 122 (2018) 3621–3625

Direct observation of backbone planarization via side-chain alignment in single bulky-substituted polythiophenes

Dominic Raithel, Lena Simine, Sebastian Pickel, Konstantin Schötz, Fabian Panzer, Sebastian Baderschneider, Daniel Schiefer, Ruth Lohwasser, Jürgen Köhler, Mukundan Thelakkat, Michael Sommer, Anna Köhler, Peter J. Rossky and Richard Hildner

PNAS 115 (2018) 2699-2704

Spin-Crossover Iron(II) Coordination Polymer with Fluorescent Properties: Correlation between Emission Properties and Spin State

Charles Lochenie, Konstantin Schötz, Fabian Panzer, Hannah Kurz, Bernadette Maier, Florian Puchtler, Seema Agarwal, Anna Köhler and Birgit Weber

J. Am. Chem. Soc., 140 (2018) 700-709

Controlling Aggregate Formation in Conjugated Polymers by Spin-Coating Below the Critical Temperature of the Disorder–Order Transition

Markus Reichenberger, Daniel Kroh, Giovanni M. M. Matrone, Konstantin Schötz, Stephan Pröller, Oliver Filonik, Margret E. Thordardottir, Eva M. Herzig, Heinz Bässler, Natalie Stingelin, Anna Köhler

Polym. Phys. 56 (2018) 532–542

The role of PbI2 in CH3NH3PbI3 perovskite stability, solar cell parameters and device degradation

Tanaji P. Gujar, Thomas Unger, Andreas Schönleber, Martina Fried, Fabian Panzer, Sander van Smaalen, Anna Köhler and Mukundan Thelakkat

Phys. Chem. Chem. Phys., 20 (2018) 605-614

Facile Synthesis and Chain-Length Dependence of the Optical and Structural Properties of Diketopyrrolopyrrole-Based Oligomers

Tushita Mukhopadhyay, Boregowda Puttaraju, Palas Roy, Jyotishman Dasgupta, Andreas Meyer, Alexander Rudnick, Steffen Tscheuschner, Frank-Julian Kahle, Anna Köhler and Satish Patil

Chem. Eur. J. 23 (2017) 13718 – 13723

The Impact of Driving Force and Temperature on the Electron Transfer in Donor−Acceptor Blend Systems

Thomas Unger, Stefan Wedler, Frank-Julian Kahle, Ullrich Scherf, Heinz Bässler and Anna Köhler

J. Phys. Chem. C, 121 (2017) 22739-22752

Role of transport band edge variation on delocalized charge transport in high-mobility crystalline organic semiconductors

Andrey Kadashchuk, Fei Tong, Robby Janneck, Ivan I. Fishchuk, Alexander Mityashin, Egon Pavlica, Anna Köhler, Paul Heremans, Cedric Rolin, Gvido Bratina and Jan Genoe

Phys. Rev. B 96, (2017) 125202

Excited State Dynamics and Conformations of a Cu(II)-Phthalocyanine-Perylenebisimide Dyad

Kevin Wilma, Thomas Unger, Sinem Tuncel Kostakoglu, Manuel Hollfelder, Christoph Hunger, Andreas Lang, Ayse Gul Gurek, Mukundan Thelakkat, Jürgen Köhler, Anna Köhler, Stephan Gekle and Richard Hildner

Phys. Chem. Chem. Phys. 19 (2017) 22169

π-Conjugated Donor Polymers: Structure Formation and Morphology in Solution, Bulk and Photovoltaic Blends

Richard Hildner, Anna Köhler, Peter Müller-Buschbaum, Fabian Panzer and Mukundan Thelakkat

Adv. Energy Mater. 7 (2017) 1700314

Spectroscopic Study of Thiophene–Pyrrole-Containing S,N-Heteroheptacenes Compared to Acenes and Phenacenes

Alexander Rudnick, Christoph Wetzel, Steffen Tscheuschner, Holger Schmalz, Astrid Vogt, Andreas Greiner, Heinz Bässler, Elena Mena-Osteritz, Peter Bäuerle and Anna Köhler

J. Phys. Chem. B, 121 (2017) 7492 - 7501

Impact of Structural Dynamics on the Optical Properties of Methylammonium Lead Iodide Perovskites

Fabian Panzer, Cheng Li, Tobias Meier, Anna Köhler and Sven Huettner

Adv. Energy Mater. (2017) 1700286

Thiophene–pyrrole containing S,N-heteroheptacenes: synthesis, and optical and electrochemical characterisation

Christoph Wetzel, Astrid Vogt, Alexander Rudnick, Elena Mena-Osteritz, Anna Köhler and Peter Bäuerle

Org. Chem. Front., 4 (2017) 1629-1635

Efficient Charge Separation of Cold Charge-Transfer States in Organic Solar Cells Through Incoherent Hopping

Stavros Athanasopoulos, Steffen Tscheuschner, Heinz Bässler and Anna Köhler

J. Phys. Chem. Lett. 8 (2017) 2093−2098

Crosslinked Semiconductor Polymers for Photovoltaic Applications

Frank-Julian Kahle, Christina Saller, Anna Köhler and Peter Strohriegl

Adv. Energy Mater. (2017) 1700306

Interplay of localized pyrene chromophores and π-conjugation in novel poly(2,7-pyrene) ladder polymers

Alexander Rudnick, Kim-Julia Kass, Eduard Preis, Ullrich Scherf, Heinz Bässler and Anna Köhler

The Journal of Chemical Physics (2017) 174903

Interplay between hopping and band transport in high-mobility disordered semiconductors at large carrier concentrations: The case of the amorphous oxide InGaZnO

I. I. Fishchuk, A. Kadashchuk, A. Bhoolokam, A. de Jamblinne de Meux, G. Pourtois, M. M. Gavrilyuk, A. Köhler, H. Bässler, P. Heremans and J. Genoe

Phys. Rev. B 93, 195204

Influence of Crosslinking on Charge Carrier Mobility in Crosslinkable Polyfluorene Derivatives

Frank-Julian Kahle, Irene Bauer, Peter Strohriegl and Anna Köhler

J .Polym. Sci., Part B: Polym. Phys. 55 (2017) 112–120

Temperature Induced Order−Disorder Transition in Solutions of Conjugated Polymers Probed by Optical Spectroscopy

Fabian Panzer, Heinz Bässler and Anna Köhler

J. Phys. Chem. Lett. 8 (2017) 114–125

Monomolecular and Bimolecular Recombination of Electron– Hole Pairs at the Interface of a Bilayer Organic Solar Cell

Tobias Hahn, Steffen Tscheuschner, Frank-Julian Kahle, Markus Reichenberger, Stavros Athanasopoulos, Christina Saller, Guillermo C. Bazan, Thuc-Quyen Nguyen, Peter Strohriegl, Heinz Bässler and Anna Köhler

Adv. Funct. Mater. (2017) 27 1604906

Role of Intrinsic Photogeneration in Single Layer and Bilayer Solar Cells with C60 and PCBM

Tobias Hahn, Steffen Tscheuschner, Christina Saller, Peter Strohriegl, Puttaraju Boregowda, Tushita Mukhopadhyay, Satish Patil, Dieter Neher, Heinz Bässler and Anna Köhler

J. Phys. Chem. C 120 (2016) 25083–25091

Initiator-free crosslinking of oxetane functionalized low bandgap polymers: an approach towards stabilized bulk heterojunction solar cells

Philipp Knauer, Tobias Hahn, Anna Köhler and Peter Strohriegl

J. Mater. Chem. C 4 (2016) 10347-10357

Crosslinkable low bandgap polymers for organic solar cells

Peter Strohriegl, Christina Saller, Philipp Knauer, Anna Köhler, Tobias Hahn, Florian Fischer and Frank-Julian Kahle

Proc. of SPIE Vol. 9942, 99420O

Emission Enhancement and Intermittency in Polycrystalline Organolead Halide Perovskite Films

Cheng Li, Yu Zhong, Carlos Andres Melo Luna, Thomas Unger, Konstantin Deichsel, Anna Gräser, Jürgen Köhler, Anna Köhler, Richard Hildner and Sven Huettner

Molecules 21 (2016) 1081

Synthesis, spectroscopic characterization, thermal and luminescent properties of new organosulfur-functionalized platinum(II) bis(alkenylarylalkynyl) complexes

Md. Mostafizur Rahman, Muhammad Younus, Masnun Naher, Mostafa Kamal Masud, Akihiro Nomoto, Akiya Ogawa, Alexander Rudnick, Anna Köhler

Journal of Organometallic Chemistry 818 (2016) 185-194

Watching Paint Dry: The Impact of Diiodooctane on the Kinetics of Aggregate Formation in Thin Films of Poly(3-hexylthiophene)

Markus Reichenberger, Sebastian Baderschneider, Daniel Kroh, Steffen Grauf, Jürgen Köhler, Richard Hildner and Anna Köhler

Macromolecules 49 (2016) 6420-6430

Effect of Thermal and Structural Disorder on the Electronic Structure of Hybrid Perovskite Semiconductor CH3NH3PbI3

Shivam Singh, Cheng Li, Fabian Panzer, K. L. Narasimhan, Anna Graeser, Tanaji P. Gujar, Anna Köhler, Mukundan Thelakkat, Sven Huettner and Dinesh Kabra

J. Phys. Chem. Lett. 7 (2016) 3014–3021

The influence of torsion on excimer formation in bipolar host materials for blue phosphorescent OLEDs

Alexander A. Rudnick, Sergey Bagnich, Daniel Wagner, Stavros Athanasopoulos, Peter Strohriegl and Anna Köhler

J. Chem. Phys. 144 (2016) 214906

Compact Layers of Hybrid Halide Perovskites Fabricated via the Aerosol Deposition Process—Uncoupling Material Synthesis and Layer Formation

Fabian Panzer, Dominik Hanft, Tanaji P. Gujar, Frank-Julian Kahle, Mukundan Thelakkat , Anna Köhler and Ralf Moos

Materials 9 (2016) 9040277

Reversible Laser Induced Amplified Spontaneous Emission from Coexisting Tetragonal and Orthorhombic Phases in Hybrid Lead Halide Perovskites

Fabian Panzer, Sebastian Baderschneider, Tanaji P. Gujar, Thomas Unger, Sergey Bagnich, Marius Jakoby, Heinz Bässler, Sven Hüttner, Jürgen Köhler, Ralf Moos, Mukundan Thelakkat, Richard Hildner and Anna Köhler

Adv. Optical Mater. 6 (2016) 917-928

The effect of intermolecular interaction on excited states in p − DTS(FBTTH2)2

Markus Reichenberger, John A. Love, Alexander Rudnick, Sergey Bagnich, Fabian Panzer, Anna Stradomska, Guillermo C. Bazan, Thuc-Quyen Nguyen and Anna Köhler

J. Chem. Phys. 144 (2016) 074904

Iodine Migration and its Effect on Hysteresis in Perovskite Solar Cells

Cheng Li , Steffen Tscheuschner , Fabian Paulus , Paul E. Hopkinson , Johannes Kießling , Anna Köhler , Yana Vaynzof and Sven Huettner

Adv.Mater. (2016)

Organic solar cells with crosslinked polymeric exciton blocking layer

T. Hahn, C. Saller, M. Weigl, I. Bauer, T. Unger, A. Köhler and P. Strohriegl

Phys. Status Solidi A 212 (2015) 2162-2168

Revealing structure formation in PCPDTBT by optical spectroscopy

Christina Scharsich, Florian S. U. Fischer, Kevin Wilma, Richard Hildner, Sabine Ludwigs and Anna Köhler

J. Polym. Sci., Part B: Polym. Phys. 20 (2015) 1416-1430

A Combined Theoretical and Experimental Study of Dissociation of Charge Transfer States at the Donor − Acceptor Interface of Organic Solar Cells

Steffen Tscheuschner , Heinz Bässler , Katja Huber and Anna Köhler

J. Phys. Chem. B, 119 (2015) 10359–10371

Triplet energies and excimer formation in meta- and para-linked carbazolebiphenyl matrix materials

Sergey A. Bagnich, Alexander Rudnick, Pamela Schroegel, Peter Strohriegl and Anna Köhler

Phil.Trans.R.Soc. A 373 (2015) 20140446

Relaxation dynamics and exciton energy transfer in the low-temperature phase of MEH-PPV

Cristina Consani, Federico Koch, Fabian Panzer, Thomas Unger, Anna Köhler and Tobias Brixner

J. Chem. Phys. 142 (2015) 212429

Origin of Meyer-Neldel type compensation behavior in organic semiconductors at large carrier concentrations: Disorder versus thermodynamic description

I. I. Fishchuk, A. Kadashchuk, A. Mityashin, M. M. Gavrilyuk, A. Köhler, H. Bässler, J. Genoe, H. Sitter and N. S. Sariciftci

Phys. Rev. 90 (2014) 245201

Ultrafast Energy Transfer between Disordered and Highly Planarized Chains of Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV)

Thomas Unger, Fabian Panzer, Cristina Consani, Federico Koch, Tobias Brixner, Heinz Bässler and Anna Köhler

ACS Macro Lett 4 (2015) 412-416

Spectroscopic Signature of Two Distinct H-Aggregate Species in Poly(3-hexylthiophene)

Fabian Panzer, Michael Sommer, Heinz Bässler, Mukundan Thelakkat and Anna Köhler

Macromolecules 48 (2015) 1543–1553

Excimer Formation by Steric Twisting in Carbazole and Triphenylamine-Based Host Materials

Sergey A. Bagnich, Stavros Athanasopoulos, Alexander Rudnick, Pamela Schroegel, Irene Bauer, Neil C. Greenham, Peter Strohriegl and Anna Köhler

J. Phys. Chem. C 119 (2015) 2380-2387

Does Excess Energy Assist Photogeneration in an Organic Low-Bandgap Solar Cell?

Tobias Hahn, Johannes Geiger, Xavier Blase, Ivan Duchemin, Dorota Niedzialek, Steffen Tscheuschner, David Beljonne, Heinz Bässler and Anna Köhler

Advanced Functional Materials 8 (2015) 1287-1295

Ground State Bleaching at Donor–Acceptor Interfaces

Christian Schwarz, Felix Milan, Tobias Hahn, Markus Reichenberger, Stephan Kümmel and Anna Köhler

Advanced Functional Materials 41 (2014) 6439–6448

Analytic model of hopping transport in organic semiconductors including both energetic disorder and polaronic contributions

I. I. Fishchuk, A. Kadashchuk, S. T. Hoffmann, S. Athanasopoulos, J. Genoe, H. Bässler and A. Köhler

AIP Conf. Proc. 47 (2014) 47-52

The Impact of Polydispersity and Molecular Weight on the Order− Disorder Transition in Poly(3-hexylthiophene)

Fabian Panzer, Heinz Bässler, Ruth Lohwasser, Mukundan Thelakkat and Anna Köhler

J. Phys. Chem. Lett. 5 (2014) 2742−2747

Measuring Reduced C 60 Diffusion in Crosslinked Polymer Films by Optical Spectroscopy

Florian Fischer , Tobias Hahn , Heinz Bässler , Irene Bauer , Peter Strohriegl and Anna Köhler

Adv. Funct. Mater. 39 (2014) 6172-6177

Influence of the Excited-State Charge-Transfer Character on the Exciton Dissociation in Donor−Acceptor Copolymers

Katharina Neumann, Christian Schwarz, Anna Köhler and Mukundan Thelakkat

J. Phys. Chem. C 118 ( 2014) 27–36

Rod-Like Nano-Light Harvester

Jun Ling , Zhicheng Zheng , Anna Köhler , Axel H. E. Müller

Macromol. Rapid Commun. 35 (2014) 52-55

Novel host materials for blue phosphorescent OLEDs

Peter Strohriegl, Daniel Wagner, Pamela Schrögel, Sebastian T. Hoffmann, Anna Köhler, Ute Heinemeyer, Ingo Münster

Proc. of SPIE 8829 (2013) 882906

Triazine Based Bipolar Host Materials for Blue Phosphorescent OLEDs

Daniel Wagner, Sebastian T. Hoffmann, Ute Heinemeyer, Ingo Münster, Anna Köhler and Peter Strohriegl

Chem. Mater.,25 (2013) 3758–3765

The red-phase of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV): A disordered HJ-aggregate

Hajime Yamagata, Nicholas J. Hestand, Frank C. Spano, Anna Köhler, Christina Scharsich, Sebastian T. Hoffmann and Heinz Bässler

J. Chem. Phys. 139,(2013) 114903

Unified description for hopping transport in organic semiconductors including both energetic disorder and polaronic contributions

I. I. Fishchuk, A. Kadashchuk, S. T. Hoffmann, S. Athanasopoulos, J. Genoe, H. Bässler and A. Köhler

Physical Review B 88,(2013) 125202

Controlling the π-Stacking Behavior of Pyrene Derivatives: Influence of H-Bonding and Steric Effects in Different States of Aggregation

Andreas T. Haedler, Holger Misslitz, Christian Buehlmeyer, Rodrigo Q. Albuquerque, Anna Köhler and Hans-Werner Schmidt

ChemPhysChem,14, (2013) 1818 – 1829

To Hop or Not to Hop? Understanding the Temperature Dependence of Spectral Diffusion in Organic Semiconductors

Stavros Athanasopoulos , Sebastian T. Hoffmann , Heinz Bässler , Anna Köhler and David Beljonne

J. Phys. Chem. Lett., 4 , (2013) 1694–1700

Role of the effective mass and interfacial dipoles on exciton dissociation in organic donor-acceptor solar cells

Christian Schwarz, Steffen Tscheuschner, Johannes Frisch, Stefanie Winkler, Norbert Koch, Heinz Bässler and Anna Köhler

Phys. Rev. B 87 (2013) 155205

How Do Disorder, Reorganization, and Localization Influence the Hole Mobility in Conjugated Copolymers?

Sebastian T. Hoffmann, Frank Jaiser, Anna Hayer, Heinz Bässler, Thomas Unger, Stavros Athanasopoulos, Dieter Neher and Anna Köhler

J. Am. Chem. Soc.135 (2013) 1772-1782

No more breaks for electrons

Anna Köhler

Nature Materials 11 (2012) 836–837

How do Triplets and Charges Move in Disordered Organic Semiconductors? A Monte Carlo Study Comprising the Equilibrium and Nonequilibrium Regime

Sebastian T. Hoffmann,Stavros Athanasopoulos, David Beljonne, Heinz Bässler and Anna Köhler

J. Phys. Chem. C 116 (2012) 16371–16383

Why Does the Electrical Conductivity in PEDOT:PSS Decrease with PSS Content? A Study Combining Thermoelectric Measurements with Impedance Spectroscopy

Thomas Stöcker, Anna Köhler, Ralf Moos

Journal of Polymer Science Part B: Polymer Physics, (2012) 976–983

An Order−Disorder Transition in the Conjugated Polymer MEH-PPV

Anna Köhler, Sebastian T. Hoffmann and Heinz Bässler

J. Am. Chem. Soc. 134 (2012) 11594–11601

The role of C-H and C-C stretching modes in the intrinsic non-radiative decay of triplet states in a Pt-containing conjugated phenylene ethynylene

Anna Köhler, Amena L. T. Khan, Joanne S. Wilson, Carsten Dosche, Mohammed K. Al-Suti et al.

J. Chem. Phys. 136, 094905 (2012)

Does conjugation help exciton dissociation? A study on poly(p-phenylene)s in planar heterojunctions with C60 or TNF

Christian Schwarz, Heinz Bässler, Irene Bauer, Jan-Moritz Koenen, Eduard Preis, Ullrich Scherf and Anna Köhler

Advanced Materials 24 (2012) 922–925

Control of Aggregate Formation in Poly(3-hexylthiophene) by Solvent, Molecular Weight and Synthetic Method (Editor’s Choice Paper)

Christina Scharsich, Ruth H. Lohwasser, Michael Sommer, Udom Asawapirom, Ullrich Scherf, Mukundan Thelakkat, Dieter Neher, Anna Köhler

J. Poly. Sci. B: Polymer Physics 50 (2012) 442–453

On the Formation Mechanism for Electrically Generated Exciplexes in a Carbazole-Pyridine Copolymer

Anna Hayer, Tanguy Van Regemorter, Bianca Höfer, Chris S. K. Mak, David Beljonne, Anna Köhler

J. Poly. Sci. B: Polymer 50 (2012) 361-369

Role of Structural Order and Excess Energy on Ultrafast Free Charge Generation in Hybrid Polythiophene/Si Photvoltaics Probed in Real Time by Near-Infrared Broadband Transient Absorption

Daniel Herrmann, Sabrina Niesar, Christina Scharsich, Anna Köhler, Martin Stutzmann and Eberhard Riedle

J. Am. Chem. Soc. 133 (2011) 18220-18233

Triplet-Triplet Annihilation in a Series of Poly(p-phenylene) Derivatives

S.T. Hoffmann, J.M. Koenen, U. Scherf, I. Bauer, P. Strohriegl, H. Bässler, A. Köhler

J. Phys. Chem. B 115 (2011) 8417-8423

Diffusion-Limited Energy Transfer in Blends of Oligofluorenes with an Anthracene Derivative

R.Q. Albuquerque, C.C. Hofmann, J. Köhler, A. Köhler

J. Phys. Chem. B 115 (2011) 8063-8070

A series of CBP-derivatives as host materials for blue phosphorescent organic light-emitting diodes

Pamela Schrögel, Ausra Tomkeviciene, Peter Strohriegl, Sebastian T. Hoffmann, Anna Köhler and Christian Lennartz

J. Mat. Chem. 21 (2011) 2266-2273

Synthesis and characterization of platinum (II) di-ynes and poly-ynes incorporating ethylenedioxythiophene (EDOT) spacers in the backbone

Muhammad S. Khan, Mohammed K. Al-Suti, Hakkikulla H. Shah, Said Al-Humaimi, Fathiya R. Al-Battashi, Jens K. Bjernemose, Louise Male, Paul R. Raithby, Ning Zhang, Anna Köhler and John E. Warrend

Dalton Tans., 40 (2011) 10174

Triplet Excimer Emission in a Series of 4,4′-Bis(N-carbazolyl)-2,2′-biphenyl Derivatives

ST Hoffmann, P Schrögel, M Rothmann, R Albuquerque, P Strohriegl and A Köhler

J. Phys. Chem. B 115 (2011) 414-421

What controls triplet exciton transfer in organic semiconductors?

A Köhler, H Bässler

J. Mater. Chem. 21 (2011) 4003-4011

What Determines Inhomogeneous Broadening of Electronic Transitions in Conjugated Polymers?

ST Hoffmann, H Bässler, A Köhler

J. Phys. Chem. B 114 (2010) 17037–17048

Synthesis and comparison of the optical properties of platinum (II) poly-ynes with fused and non-fused oligothiophenes

L Sudha Devi, MK Al-Suti, N Yhang, SJ Teat, L Male, HA, Sparkes, RP Rainthby, MS Khan, A Köhler

Macromolecules 42 (2009) 1131-1141

Triplet Energy Back Transfer in Conjugated Polymers with Pendant Phosphorescent Iridium Complexes

Nicholas R. Evans, Lekshmi Sudha Devi, Chris S. K. Mak, Scott E. Watkins, Sofia I. Pascu, Anna Köhler, Richard H. Friend, Charlotte K. Williams and Andrew B. Holmes

J. Am. Chem. Soc. 128 (2006) 6647-6656

Blue-to-green electrophosphorescence of iridium-based cyclometallated materials

CSK Mak, A Hayer, SI Pascu, SE Watkins, AB Holmes, A Köhler, RH Friend

Chem. Commun., 37 (2005) 4708-4710

Solution-processable conjugated electrophosphorescent polymers

AJ Sandee, CK Williams, N Evans, JR Davies, CE Boothby, A Köhler, RH Friend and AB Holmes

J. Am. Chem. Soc. 126 (2004) 7041-7048

Copyright © 2011 EP2 Köhler V1.0 powered by ST Design / ST Informatik München - Bayreuth