Quasi-solid electrolyte based on polyacrylonitrile for dye-sensitized solar cells

被引：48

作者：

Ileperuma, Oliver A. ^{[1
]}

Kumara, G. R. Asoka ^{[1
]}

Yang, Hong-Sheng ^{[1
]}

Murakami, Kenji ^{[1
]}

机构：

[1] Shizuoka Univ, Elect Res Inst, Joho Ku, Hamamatsu, Shizuoka 4328011, Japan

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2011年 / 217卷 / 2-3期

关键词：

Dye sensitized solar cell; Polyacrylonitrile; Quasi-solid electrolyte; POLYMER ELECTROLYTES; STATE; CONVERSION; EFFICIENCY;

D O I：

10.1016/j.jphotochem.2010.10.024

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A quasi-solid gel-polymer electrolyte for dye-sensitized nanostructured TiO2 sensitized by N719 ruthenium dye has been developed. The electrolyte comprises of polyacrylonitrile along with plasticizers, ethylene carbonate and propylene carbonate in the 15:35:50 ratio and the redox couple consists of tetrabutyl ammonium iodide and iodine along with tertiary butyl pyridine. The concentration of iodide:iodine was optimized and optimal activity was found when the molar ratio is 1.50:0.05. This gel electrolyte has a high electrical conductivity of 4.33 mS cm(-1) and overall conversion efficiencies of over 7% were obtained for solar to electrical energy conversion which is higher than the values reported for other similar gel-polymer electrolytes. The reduction in efficiency compared to a solar cell employing a liquid electrolyte can be attributed to incomplete wetting of pores and due to mass transfer limitations of redox species through a more viscous medium. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：308 / 312

页数：5

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