期刊
THIN SOLID FILMS
卷 517, 期 20, 页码 5900-5902出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2009.03.212
关键词
Organic photovoltaics; Polymeric anode; PEDOT:PSS; Indium tin oxide free
类别
资金
- ZSW Stuttgart
- Deutsche Forschungsgemeinschaft (DFG)
We present highly efficient indium tin oxide free polymer solar cells based on poly-(3-hexylthiophene-2,5-diyl) and C(61)-bis-butric-acid-methyl-ester (P3HT:bisPCBM) comprising a polymeric anode from highly conductive poly (3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) formulations. The film conductivity was optimized by various additives. We found conductivities of almost 600 S/cm upon the addition of dimethylsulfoxide. The wetting properties of different PEDOT:PSS formulations were investigated by contact angle measurements. The optimized high conductivity in combination with the good film forming properties allow for the fabrication of highly efficient organic solar cells with an external power conversion efficiency of 3.5% with PEDOT: PSS as polymeric anode. (C) 2009 Elsevier B.V. All rights reserved.
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