Graphene films decorated with metal sulfide nanoparticles for use as counter electrodes of dye-sensitized solar cells

被引：66

作者：

Bi, Hui ^{[1
]}

Zhao, Wei ^{[1
]}

Sun, Shengrui ^{[1
]}

Cui, Houlei ^{[1
]}

Lin, Tianquan ^{[1
]}

Huang, Fuqiang ^{[1
,2
]}

Xie, Xiaoming ^{[3
]}

Jiang, Mianheng ^{[3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China

来源：

CARBON | 2013年 / 61卷

关键词：

LOW-COST; ARRAYS;

D O I：

10.1016/j.carbon.2013.04.075

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 composite films of metal sulfide (MS, M = Ni, Co) nanoparticles (NPs)/graphene films were proposed to be novel transparent conductive oxide- and platinum (Pt)-free counter electrodes with high electrocatalytic activity for dye-sensitized solar cells (DSSCs). Such DSSCs show higher photovoltaic conversion efficiencies of 5.25% (NiS/graphene) and 5.04% (CoS/graphene), compared with 5.00% for (Pt/fluorine-doped tin oxide). The excellent DSSC efficiencies are mainly due to the superior electrocatalytic activity of the MS and graphene films, and highly electrical properties of graphene films (9.57 Omega/sq). The excellent charge transfer between MS NPs and graphene films is due to the unique MS NPs and high surface area graphene structure. The graphene films were directly grown on dielectric SiO2 substrates by chemical vapor deposition. MS NPs were uniformly implanted on the graphene films by dip,coating of MS precursors M(C3HSOS2)(2), and further annealed at 400 degrees C for 30 min under Ar. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：116 / 123

页数：8

共 26 条

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