Journal
APPLIED PHYSICS LETTERS
Volume 98, Issue 24, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.3600665
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Funding
- NSFC [20821120293, 50933003, 20976199]
- Ministry of Science and Technology of China
- Chinese Academy of Sciences
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Photovoltaic performance of the polymer solar cell (PSC) based on poly(3-hexylthiophene) (P3HT) as donor and [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM) as acceptor was improved by using the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) modification layer treated by ethanol or 2-propanol. Power conversion efficiency (PCE) of the PSC based on P3HT: PCBM (1:1, w/w) with the 2-propanol-treated PEDOT: PSS modification layer reached 4.74%, in comparison with a PCE of 3.39% for the PSC with the PEDOT: PSS layer without the organic solvent treatment. The enhanced performance of the PSCs is attributed to higher conductivity and optimized surface morphology of the PEDOT:PSS layers treated by the organic solvent. (C) 2011 American Institute of Physics. [doi:10.1063/1.3600665]
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