Low-Pt-loading acetylene-black cathode for high-efficient dye-sensitized solar cells

被引：35

作者：

Cai, Fengshi ^{[1
,3
]}

Liang, Jing ^{[1
]}

Tao, Zhanhang ^{[1
]}

Chen, Jun ^{[1
]}

Xu, Ruisong ^{[2
]}

机构：

[1] Nankai Univ, Inst New Energy Mat Chem, Tianjin 300071, Peoples R China

[2] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China

[3] Tianjin Univ Technol, Coll Mat Sci & Engn, Tianjin 300191, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2008年 / 177卷 / 02期

关键词：

dye-sensitized solar cells; acetylene-black; Pt; light-to-electricity conversion efficiency;

D O I：

10.1016/j.jpowsour.2007.10.096

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：

We reported on the synthesis, characterization, and photovoltaic/electrochemical properties of Pt/acetylene-black (AB) cathode as well as their application in dye-sensitized solar cells (DSCs). The Pt/AB electrode was prepared through a thermal decomposition of H2PtCl6 on the AB substrate. SEM and TEM observations showed that the Pt nanoparticles were homogeneously dispersed on the AB surface. The Pt-loading content in the Pt/AB electrode was only about 2.0 mu g cm(-2), which was much lower than 5-10 mu g cm(-2) generally used for the Pt electrode in DSCs. Electrochemical measurements displayed a low charge-transfer resistance of 1.48 Omega cm(2) for the Pt/AB electrode. Furthermore, when this low-Pt-loading electrode was used as the cathode of DSCs, an overall light-to-electricity energy conversion efficiency of 8.6% was achieved, showing commercially realistic energy conversion efficiency in the application of DSCs. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：631 / 636

页数：6

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