Suppression of bimolecular recombination by UV-sensitive electron transport layers in organic solar cells

Title
Suppression of bimolecular recombination by UV-sensitive electron transport layers in organic solar cells
Authors
고두현John. R. Tumbleston옥명렬천홍구Rene LopezEdward T. Samulski
Issue Date
2010-10
Publisher
Journal of applied physics
Citation
VOL 108, NO 8, 083101-1-083101-6
Abstract
Incorporating UV-sensitive electron transport layers ETLs into organic bulk heterojunction BHJ photovoltaic devices dramatically impacts short-circuit current Jsc and fill factor characteristics. Resistivity changes induced by UV illumination in the ETL of inverted BHJ devices suppress bimolecular recombination producing up to a two orders of magnitude change in Jsc. Electro-optical modeling and light intensity experiments effectively demonstrate that bimolecular recombination, in the form of diode current losses, controls the extracted photocurrent and is directly dependent on the ETL resistivity.
URI
http://pubs.kist.re.kr/handle/201004/50456
ISSN
00218979
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KIST Publication > Article
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