Photovoltaic cells with a conjugated polyelectrolyte

被引:83
作者
Ding, L
Jonforsen, M
Roman, LS
Andersson, MR
Inganäs, O [1 ]
机构
[1] Linkoping Univ, IFM, Appl Phys Lab, S-58183 Linkoping, Sweden
[2] Chalmers Univ Technol, Dept Polymer Technol, S-41296 Gothenburg, Sweden
关键词
photovoltaic cells; conjugated polyelectrolyte; polythiophene; polymer blend;
D O I
10.1016/S0379-6779(99)00284-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We describe photovoltaic cells made from a novel conjugated polyelectrolyte, the lithium salt of poly(thiophene-3-acetic acid) (PTAA-Li). The aqueous solubility of this polyelectrolyte allows formation of blend electrodes with a dispersion of the metallic polymer Poly(Ethylene DiOxyThiophene) (PEDOT). The incident monochromatic photon to current conversion efficiency (IPCE) of the cells were improved up to 19% by blending PTAA-Li with PEDOT to modify the ITO electrode, in combination with the low bandgap polymer poly(3-(4-octylphenyl)thiophene) (POPT), and C-60 as electron acceptor. We attribute the increase of efficiency to the improved contact area between the conjugated polyelectrolyte and PEDOT. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:133 / 140
页数:8
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