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Evidence for Anisot...
Evidence for Anisotropic Electronic Coupling of Charge Transfer States in Weakly Interacting Organic Semiconductor Mixtures
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- Belova, Valentina (author)
- University of Tübingen
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- Beyer, Paul (author)
- Humboldt University of Berlin
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- Meister, Eduard (author)
- University of Augsburg
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- Linderl, Theresa (author)
- University of Augsburg
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- Halbich, Marc Uwe (author)
- Philipp University of Marburg
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- Gerhard, Marina (author)
- Philipp University of Marburg
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- Schmidt, Stefan (author)
- University of Augsburg
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- Zechel, Thomas (author)
- University of Augsburg
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- Meisel, Tino (author)
- Humboldt University of Berlin
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- Generalov, Alexander V. (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Anselmo, Ana Sofia (author)
- Helmholtz Association of German Research Centers
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- Scholz, Reinhard (author)
- Dresden University of Technology
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- Konovalov, Oleg (author)
- European Synchrotron Radiation Facility
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- Gerlach, Alexander (author)
- University of Tübingen
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- Koch, Martin (author)
- Philipp University of Marburg
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- Hinderhofer, Alexander (author)
- University of Tübingen
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- Opitz, Andreas (author)
- Humboldt University of Berlin
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- Brütting, Wolfgang (author)
- University of Augsburg
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- Schreiber, Frank (author)
- University of Tübingen
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(creator_code:org_t)
- 2017-06-15
- 2017
- English 13 s.
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In: Journal of the American Chemical Society. - : American Chemical Society (ACS). - 0002-7863 .- 1520-5126. ; 139:25, s. 8474-8486
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http://dx.doi.org/10...
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Abstract
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- We present a comprehensive investigation of the charge-transfer (CT) effect in weakly interacting organic semiconductor mixtures. The donor-acceptor pair diindenoperylene (DIP) and N,N′-bis(2-ethylhexyl)-1,7-dicyanoperylene-3,4/9,10-bis(dicarboxyimide) (PDIR-CN2) has been chosen as a model system. A wide range of experimental methods was used in order to characterize the structural, optical, electronic, and device properties of the intermolecular interactions. By detailed analysis, we demonstrate that the partial CT in this weakly interacting mixture does not have a strong effect on the ground state and does not generate a hybrid orbital. We also find a strong CT transition in light absorption as well as in photo- and electroluminescence. By using different layer sequences and compositions, we are able to distinguish electronic coupling in-plane vs out-of-plane and, thus, characterize the anisotropy of the CT state. Finally, we discuss the impact of CT exciton generation on charge-carrier transport and on the efficiency of photovoltaic devices.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Belova, Valentin ...
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Beyer, Paul
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Meister, Eduard
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Linderl, Theresa
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Halbich, Marc Uw ...
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Gerhard, Marina
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show more...
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Schmidt, Stefan
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Zechel, Thomas
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Meisel, Tino
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Generalov, Alexa ...
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Anselmo, Ana Sof ...
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Scholz, Reinhard
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Konovalov, Oleg
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Gerlach, Alexand ...
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Koch, Martin
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Hinderhofer, Ale ...
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Opitz, Andreas
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Brütting, Wolfga ...
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Schreiber, Frank
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
- Articles in the publication
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Journal of the A ...
- By the university
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Lund University