Devizis, A., Hertel, D., Meerholz, K., Gulbinas, V. and Moser, J. -E. (2014). Time-independent, high electron mobility in thin PC61BM films: Relevance to organic photovoltaics. Org. Electron., 15 (12). S. 3729 - 3735. AMSTERDAM: ELSEVIER. ISSN 1878-5530
Full text not available from this repository.Abstract
Ultrafast optical probing of electric field by means of electroabsorption combined with conventional photocurrent measurements was employed to investigate the drift and mobility dynamics of photo-generated charge carriers in the pristine PC61BM film and in the blend with a merocyanine dye. Electrons passed a 40 nm thick PC61BM film within a few picoseconds with time-independent and weakly dispersive mobility. The electron mobility is 1 cm(2)/(V s) at 1 MV/cm and an estimate of the zero-field mobility yields 5 . 10(-2) cm(2)/(V s). The initial electron mobility in the blend is of the order of 10(-2) cm(2)/(V s) and decreases rapidly. We conclude that electron motion in PC61BM based organic bulk hetero-junction solar cells is limited by barriers between PC61BM domains rather than by intrinsic PC61BM properties. (C) 2014 Elsevier B.V. All rights reserved.
Item Type: | Journal Article | ||||||||||||||||||||||||
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URN: | urn:nbn:de:hbz:38-421863 | ||||||||||||||||||||||||
DOI: | 10.1016/j.orgel.2014.10.028 | ||||||||||||||||||||||||
Journal or Publication Title: | Org. Electron. | ||||||||||||||||||||||||
Volume: | 15 | ||||||||||||||||||||||||
Number: | 12 | ||||||||||||||||||||||||
Page Range: | S. 3729 - 3735 | ||||||||||||||||||||||||
Date: | 2014 | ||||||||||||||||||||||||
Publisher: | ELSEVIER | ||||||||||||||||||||||||
Place of Publication: | AMSTERDAM | ||||||||||||||||||||||||
ISSN: | 1878-5530 | ||||||||||||||||||||||||
Language: | English | ||||||||||||||||||||||||
Faculty: | Unspecified | ||||||||||||||||||||||||
Divisions: | Unspecified | ||||||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||||||
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URI: | http://kups.ub.uni-koeln.de/id/eprint/42186 |
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