Journal
ORGANIC ELECTRONICS
Volume 10, Issue 5, Pages 1006-1010Publisher
ELSEVIER
DOI: 10.1016/j.orgel.2009.04.006
Keywords
Organic solar cell; Pentacene; PTCDI-C-8; Heterojunction
Funding
- CSIR, Govt of India
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We have studied an organic photovoltaic cell based on an efficient donor/acceptor combination of pentacene/N,N'-dioctyl-3,4,9,10-perylenedicarboximide (PTCDI-C-8) heterojunctions. Photocurrent spectra exhibited excellent light harvesting throughout the visible spectrum with maximum external quantum efficiency (EQE) of similar to 60%. PTCDI-C-8 layer provided significant contribution to the photocurrent due to its strong absorption properties and efficient exciton dissociation at pentacene/PTCDI-C-8 interface. Power conversion efficiency of about 1.2% has been achieved under AM 1.5 illumination. The device showed a low series resistance of 18 Omega cm(2) and a high shunt resistance of 2.5 k Omega cm(2), resulting in a high fill factor of 65%. (C) 2009 Elsevier B.V. All rights reserved.
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