期刊
ADVANCED MATERIALS
卷 26, 期 5, 页码 780-785出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201302845
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资金
- Department of Energy Office of Basic Energy Sciences [DE-FG02-08ER46535]
- NSF [DMR-1121053]
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has been extensively used as the hole-transporting layer (HTL) in bulk heterojunction (BHJ) solar cells, however, its anisotropic electrical conduction and intrinsic acidic nature generally limit the device performance. Here we demonstrate the application of a water/alcohol soluble CPE (CPE-K) as HTLs in BHJ solar cells, achieving a PCE up to 8.2%. The more superior and uniform vertical electrical conductivity found in CPE-K reduces the series resistance and provides efficient hole extraction.
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