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Photogeneration of free charge carriers in .pi.-conjugated polymers with bulky side groups
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SYSNO ASEP 0381400 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Photogeneration of free charge carriers in .pi.-conjugated polymers with bulky side groups Author(s) Menšík, Miroslav (UMCH-V) RID
Jex, M. (CZ)
Pfleger, Jiří (UMCH-V) RID, ORCID
Jung, J. (PL)Source Title Chemical Physics. - : Elsevier - ISSN 0301-0104
Roč. 404, 24 August (2012), s. 48-55Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords photogeneration of free charge carriers ; charge transfer states ; localized excitation Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GAP205/10/2280 GA ČR - Czech Science Foundation (CSF) OC10007 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UMCH-V - RVO:61389013 CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000308087500010 DOI https://doi.org/10.1016/j.chemphys.2012.03.009 Annotation Photogeneration of free charge carriers in poly{1-[4-(trimethylsilyl)phenyl]-2-phenylacetylene} has been studied theoretically. In our work we have utilized our data obtained previously using photoinduced discharge experiment, which showed a steep slope of the dependence of the free charge carriers photogeneration yield on the applied electric field at the low electric field limit, but no saturation plateau. For the theoretical explanation we have utilized our recently developed model (Mensik et al., 2011) [20] that generalizes the model of Arkhipov et al. (2003) [19] by adding an assumption of a resonant reversible coupling of localized excitation to charge transfer states and, consequently, and dependence of internal parameters (permittivity, effective mass of the hole, rate constants) on electric field. Compared to our previous article this work provides a refined analysis of the experimental results on a large variety of intervals of the model parameters. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2013
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