Efficiency enhancement of dye-sensitized solar cells by optimization of electrospun ZnO nanowire/nanoparticle hybrid photoanode and combined modification

被引：25
作者：
Song, Lixin [1 ,2 ]
Du, Pingfan [1 ,2 ]
Xiong, Jie [1 ,2 ]
Ko, Frank [3 ]
Cui, Can [4 ]
机构：
[1] Coll Mat & Text, Hangzhou 310018, Zhejiang, Peoples R China
[2] Minist Educ, Key Lab Adv Textile Mat & Mfg Technol, Hangzhou 310018, Zhejiang, Peoples R China
[3] Zhejiang Sci Tech Univ, Sch Sci, Hangzhou 310018, Zhejiang, Peoples R China
[4] Univ British Columbia, Dept Mat Engn, Vancouver, BC V5Z 1M9, Canada
来源：
ELECTROCHIMICA ACTA | 2015年 / 163卷
基金：
中国国家自然科学基金;
关键词：
Zinc oxide; Multi-walled carbon nanotubes; Titanium tetrachloride; Electrospinning; Dye-sensitized solar cells; CARBON NANOTUBES; CONVERSION EFFICIENCY; TIO2; NANOSTRUCTURES; PERFORMANCE; RECOMBINATION; COLLECTION; NANORODS; GROWTH; LENGTH;
D O I：
10.1016/j.electacta.2015.02.093
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
ZnO nanoparticles (ZNPs) and ZnO nanowires (ZNWs) were fabricated via electrospinning and calcination. The ZNPs and ZNWs were blended with different mass ratio by varying ZNWs from 0% to 100% and serviced as photoanodic film of dye-sensitized solar cells (DSSCs) via spin coating. The efficiency of these DSSCs reached a maximum of 2.6% at 20 wt% ZNWs. In order to improve the photovoltaic properties of ZNWs/ZNPs hybrid photoanodic film, the ZNWs/ZNPs hybrid film was modified by the incorporation of multi-walled carbon nanotubes (MWCNTs) into ZnO matrix including both ZNPs and ZNWs combined with TiCl4 post-treatment. As a result, the efficiency of DSSCs increased from 2.6% to 3.8%, which is mainly attributed to the increased dye loading, faster electron transport, and less electron loss. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：330 / 337
页数：8
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