Efficient thin-film organic solar cells based on pentacene/C-60 heterojunctions

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We have fabricated an efficient organic photovoltaic cell based on a heterojunction of pentacene and C-60. Photocurrent action spectra exhibit broad light-harvesting throughout the visible spectrum with a peak external quantum efficiency (EQE) of 58+/-4% at short-circuit condition. Modeling studies indicate that this high EQE can be partly attributed to the large exciton diffusion length in the pentacene film as well as efficient dissociation of excitons at the pentacene/C-60 heterojunction. (C) 2004 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2004-11
Language
English
Article Type
Article
Keywords

ENERGY-LEVEL ALIGNMENT; PHOTOVOLTAIC DEVICES; TRANSISTORS; MOBILITY; SPECTRA

Citation

APPLIED PHYSICS LETTERS, v.85, no.22, pp.5427 - 5429

ISSN
0003-6951
DOI
10.1063/1.1829777
URI
http://hdl.handle.net/10203/82952
Appears in Collection
EE-Journal Papers(저널논문)
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