Effect of UV light-irradiated buffer layer on the performance of polymer solar cells

Title
Effect of UV light-irradiated buffer layer on the performance of polymer solar cells
Authors
이행근김재경박오옥
Keywords
UV; solar cell; polymer; buffer layer; Organic photovoltaic; Buffer layer modification; Series resistance; UV light irradiation; Bulk heterojunction
Issue Date
2009-12
Publisher
Organic electronics
Citation
VOL 10, NO 8, 1641-1644
Abstract
We investigate the effect of a UV-irradiated poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) buffer layer on the performance of polymer photovoltaic cells based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blends. It was found that UV irradiation can reduce the bulk and contact resistance of PEDOT:PSS films, improving the power conversion efficiency from (3.05 ± 0.04)% to (3.50 ± 0.03)% due to the lower device series resistance under an illumination of AM1.5G, 100 mW/㎠. The work function change after UV irradiation and negligible surface morphology change was noticed.
URI
http://pubs.kist.re.kr/handle/201004/36974
ISSN
1566-1199
Appears in Collections:
KIST Publication > Article
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