Trap energy level of P3HT: PCBM-71 bulk heterojunction solar cells with PICTS (photo-induced current transient spectroscopy)

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We have studied the energy level of the trap states in P3HT: PCBM-71 bulk heterojunction solar cells by using the PICTS (photo-induced current transient spectroscopy) method. The trap energy level is extracted to be 73.1 meV, which is larger than that of bulk P3HT (similar to 54 meV). This difference, we believe, is that fullerene anion of PCBM plays as a deep potential well for holes. (C) 2010 Elsevier B. V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2010-05
Language
English
Article Type
Article; Proceedings Paper
Keywords

POLYMER PHOTOVOLTAIC CELLS; DEEP LEVELS; FILMS

Citation

CURRENT APPLIED PHYSICS, v.10, no.3, pp.525 - 527

ISSN
1567-1739
URI
http://hdl.handle.net/10203/96318
Appears in Collection
PH-Journal Papers(저널논문)
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