Graphene-Pt\ITO counter electrode to significantly reduce Pt loading and enhance charge transfer for high performance dye-sensitized solar cell

被引：49

作者：

Guai, Guan Hong ^{[1
,2
,3
]}

Song, Qun Liang ^{[1
,2
,4
,5
]}

Guo, Chun Xian ^{[1
,2
,4
,5
]}

Lu, Zhi Song ^{[4
]}

Chen, Tao ^{[1
,2
]}

Ng, Chee Mang ^{[3
]}

Li, Chang Ming ^{[1
,2
,4
,5
]}

机构：

[1] Nanyang Technol Univ, Ctr Adv Bionanosyst, Singapore 637457, Singapore

[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637457, Singapore

[3] GlobalFoundries Singapore Pte Ltd, Singapore 738406, Singapore

[4] Southwest Univ, Inst Clean Energy & Adv Mat, Chongqing 400715, Peoples R China

[5] Chongqing Key Lab Adv Mat & Technol Clean Elect P, Chongqing 400715, Peoples R China

来源：

SOLAR ENERGY | 2012年 / 86卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

Graphene; Platinum; Counter electrode; Charge transfer; Dye-sensitized solar cell; OXIDE-FILMS; PLATINUM; CARBON; COMPOSITE; NUCLEATION; EFFICIENCY; GROWTH;

D O I：

10.1016/j.solener.2012.04.006

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A graphene-Pt\ITO (ITO-PG) counter electrode is fabricated by electrochemical deposition of a porous graphene film on a low-loaded Pt\ITO electrode. Compared to both plain graphene and Pt films, the graphene-coated Pt composite film provides large and superior conductive interface for significant improvement of Pt utilization efficiency and charge transfer, which in turn leads to higher power conversion efficiency of the dye-sensitized solar cell (DSSC). As compared to conventional Pt-coated counter electrode, the Pt loading of ITO-PG electrode can be reduced by more than 60% to 1.9 mu g cm(-2) while achieving even better performance. The performance enhancement mechanism is proposed. This work renders an economical manufacturing process to fabricate high performance DSSC for potential commercial production. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2041 / 2048

页数：8

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