期刊
ORGANIC ELECTRONICS
卷 13, 期 11, 页码 2479-2484出版社
ELSEVIER
DOI: 10.1016/j.orgel.2012.06.045
关键词
Organic photovoltaic; Inverted structure; Solution processing; Anode buffer layer; WO3 nanoparticles
资金
- European Commission [288565]
Solution processing is a convenient method and also the guarantee for low cost and large-scale organic photovoltaic (OPV) production. It was recently suggested that the absorption of OPV devices can be spectrally extended by introducing ternary semiconductor blends, where a second donor with a complementary absorption spectrum is added into the active layer. In this manuscript we demonstrate the successful replacement of poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) by low temperature solution processed tungsten trioxide (WO3) nanoparticles for inverted OPV devices based on either poly(3-hexylthiophene) (P3HT): phenyl-C61-butyric acid methyl ester (PCBM) or P3HT: poly[2,1,3-benzothiadiazole-4,7-diyl[4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2,6-diyl]] (Si-PCPDTBT):PCBM active layers. These WO nanoparticles can serve as fully functional anode buffer layers in inverted OPV devices without further treatment, while showing comparable functionality as PEDOT:PSS layers. (C)12 Elsevier B.V. All rights reserved.
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