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Photogeneration of free charge carriers in tenuously packed .pi. conjugated polymer chains
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SYSNO ASEP 0368418 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Photogeneration of free charge carriers in tenuously packed .pi. conjugated polymer chains Author(s) Menšík, Miroslav (UMCH-V) RID
Pfleger, Jiří (UMCH-V) RID
Rybak, A. (PL)
Jung, J. (PL)
Ulanski, J. (PL)
Halašová, Klára (UMCH-V) RID
Vohlídal, J. (CZ)Source Title Polymers for Advanced Technologies - ISSN 1042-7147
Roč. 22, č. 12 (2011), s. 2075-2083Number of pages 9 s. Language eng - English Country GB - United Kingdom Keywords photogeneration of free charge carriers ; charge transfer states ; conjugated polymers Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA202/07/0643 GA ČR - Czech Science Foundation (CSF) KAN100500652 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA401770601 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) 7E10040 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000298175400068 DOI 10.1002/pat.1724 Annotation A new theoretical insight into the process of free charge carrier photogeneration in polymers is introduced, based on the fact that increasing intensity of electric field may change the charge dynamics during the dissociation process of geminate pairs of photogenerated charge carriers. These changes are reflected in the model by the variation of internal parameters such as permittivity and effective mass of the hole. We used this approach to modify the model recently designed by Arkhipov, Emelianova and Baessler, describing a thermally activated escape of a hole from a quantum well in a Coulombic field of a localized electron. Our approach is particularly suitable for the description of the charge carrier photogeneration process in a polymer consisted of tenuously packed p conjugated polymer chains, as documented by its application to the experimental results of charge carrier photogeneration in poly{1-[4-(trimethylsilyl)phenyl]-2-phenylacetylene}. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2012
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