Solid-state dye-sensitized solar cell: Improved performance and stability using a plasticized polymer electrolyte

被引：70

作者：

Nogueira, Viviane C. ^{[1
]}

Longo, Claudia ^{[1
]}

Nogueira, Ana Flavia ^{[1
]}

Soto-Oviedo, Mauro A. ^{[1
]}

De Paoli, Marco-A. ^{[1
]}

机构：

[1] Univ Estadual Campinas, Inst Quim, Lab Polimeros Condutores & Reciclagem, BR-13084971 Campinas, SP, Brazil

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2006年 / 181卷 / 2-3期

关键词：

polymer electrolyte; ionic conductivity; plasticizer; solid-state dye-sensitized TiO2 solar cell; stability;

D O I：

10.1016/j.jphotochem.2005.11.028

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：

The addition of the plasticizer poly(ethylene glycol)methyl ether to the polymer electrolyte based on poly(epichlorohydrin-co-ethylene oxide), NaI and I-2 increased the ionic conductivity by one order of magnitude (1.7 x 10(-4) S cm(-1)) without compromising its electrochemical, thermal and dimensional stabilities. The plasticized polymer electrolyte presented an estimated diffusion coefficient of 2 x 10(-6) cm(-2) s(-1), ca. five times higher than the diffusion coefficient estimated for the polymer electrolyte without plasticizer. Solid-state dye-sensitized TiO2 solar cells (1 cm(2)) were assembled with the plasticized polymer electrolyte and presented an open circuit potential of 0.64 V, short-circuit current of 0.60 mA cm(-2) and an energy conversion efficiency of 1.75% under light intensity of 10 mW cm(-2). This efficiency remained unchanged for 30 days, showing that cell efficiency and stability can be improved using a plasticized polymer electrolyte. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：226 / 232

页数：7

共 37 条

[21] Fabrication of an efficient solid-state dye-sensitized solar cell [J].