Effect of UV light-irradiated buffer layer on the performance of polymer solar cells
- Effect of UV light-irradiated buffer layer on the performance of polymer solar cells
- 이행근; 김재경; 박오옥
- UV; solar cell; polymer; buffer layer; Organic photovoltaic; Buffer layer modification; Series resistance; UV light irradiation; Bulk heterojunction
- Issue Date
- Organic electronics
- VOL 10, NO 8, 1641-1644
- 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.
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