Enhanced performance of dye-sensitized solar cells by doping Au nanoparticles into photoanodes: a size effect study

被引：56
作者：
Wang, Qiong [1 ,2 ]
Butburee, Teera [1 ,2 ]
Wu, Xia [1 ,2 ]
Chen, Hongjun [1 ,2 ]
Liu, Gang [3 ]
Wang, Lianzou [1 ,2 ]
机构：
[1] Univ Queensland, ARC Ctr Excellence Funct Nanomat, Sch Chem Engn, Brisbane, Qld 4072, Australia
[2] Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia
[3] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 43期
基金：
澳大利亚研究理事会;
关键词：
FERMI-LEVEL EQUILIBRATION; HIGH-EFFICIENCY; GOLD NANOPARTICLES; TIO2; FILMS; SILVER NANOPARTICLES; METAL NANOPARTICLES; ABSORPTION; ELECTROLYTE; DEPENDENCE; TRANSPORT;
D O I：
10.1039/c3ta12692g
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：
Remarkably increased power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs) is achieved by addition of small quantities of Au nanoparticles (NPs) into TiO2 photoanodes. By doping photoanodes with different sizes of Au NPs, the PCE of cells is improved from 9.59% to 10.80% (similar to 13% enhancement). The maximum increases in open-circuit voltage by 6.69% and short-circuit current density by 7.71% are observed. Detailed characterization of photovoltaic characteristics, electron lifetime and recombination resistance indicates the co-contribution of the photocharging effect, plasmonic effect and scattering effect of Au NPs and their dependence on Au NP sizes. The success of this work provides a simple and generally applicable approach to enhance light harvesting and charge separation for DSSCs.
引用
收藏
页码：13524 / 13531
页数：8
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