Co-existence of LiI and KI in filler-free, quasi-solid-state electrolyte for efficient and stable dye-sensitized solar cell

被引：52

作者：

Agarwala, S. ^{[1
]}

Thummalakunta, L. N. S. A. ^{[1
]}

Cook, C. A. ^{[3
]}

Peh, C. K. N. ^{[1
]}

Wong, A. S. W. ^{[2
]}

Ke, L. ^{[2
]}

Ho, G. W. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

[2] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore

[3] Univ Toronto, Fac Engn & Appl Sci, Toronto, ON M5S 1A4, Canada

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 03期

关键词：

Quasi-solid-electrolyte; Titanium dioxide; Dye-sensitized solar cell; Light-scattering; Efficiency; POLYMER-GEL ELECTROLYTES; IONIC LIQUID; TIO2; FILMS; NANOPARTICLES; PERFORMANCE; CONVERSION; COMPOSITE; LIGHT; SALTS;

D O I：

10.1016/j.jpowsour.2010.08.095

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-state electrolyte employing a poly (ethylene oxide)/LiI system without a filler is evalued. The electrolyte is optimized for various potassium iodide (KI) concentrations. The electrolyte containing 14.5 wt.% KI exhibits the hightest conductivity (3.0 x 10(-3) S cm(-1)). An efficiency of 4.5T is achieved using this composition of the electrolyte. It is shown that the introduction of KI in a conventional PEO/I-2/LiI electrolyte system prevents the crystallization of the polymer matrix and enhances the ionic conductivity. The energy conversion efficiency of the device is further enhanced to 5.8% by incorporating a light-scattering layer. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1651 / 1656

页数：6

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