Multi-interfacial polyaniline-graphene/platinum counter electrodes for dye-sensitized solar cells

被引：16

作者：

Yang, Peizhi ^{[1
]}

Duan, Jialong ^{[2
]}

Liu, Danyang ^{[2
]}

Tang, Qunwei ^{[2
]}

He, Benlin ^{[2
]}

机构：

[1] Yunnan Normal Univ, Minist Educ, Key Lab Adv Tech & Preparat Renewable Energy Mat, Kunming 650500, Peoples R China

[2] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2015年 / 173卷

基金：

中国国家自然科学基金;

关键词：

Dye-sensitized solar cells; Counter electrode; Multilayer; Self-assembly; Polyaniline-graphene complex; COMPLEX/GRAPHENE OXIDE MULTILAYERS; LOW-COST; EFFICIENCY; CARBON; NANOPARTICLES; BINARY; NANOTUBES; CATALYSTS; GRAPHENE;

D O I：

10.1016/j.electacta.2015.05.073

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Pursuit of multi-interfacial counter electrodes (CEs) for enhanced triiodide (I-3) reduction reaction has been a persistent objective for dye-sensitized solar cells (DSSCs). Here we report the synthesis of multilayer CEs consisting of positively charged polyaniline-graphene (PANi-G) complex and negatively charged platinum (Pt) nanoparticles. The (PANi-G/Pt)(n) (n represents the bilayer number) multilayer displays multi-interfaces for I-3 reduction and charge transfer. Moreover, the complexation between PANi and G can markedly accelerate the electron migration from G to PANi. The DSSC with (PANi-10wt parts per thousand G/Pt)(9) electrode yields an impressive power conversion efficiency of 7.45% under simulated air mass 1.5 global sunlight. The promising efficiency along with cost-effectiveness and scalable materials demonstrates the multi-interfacial CEs to be good candidates for robust DSSCs. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：331 / 337

页数：7

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