The dye adsorption optimization of ZnO nanorod-based dye-sensitized solar cells

被引：36
作者：
Fang, Xiang [1 ]
Li, Yan [1 ]
Zhang, Shuai [1 ,2 ]
Bai, Li [1 ]
Yuan, Ningyi [1 ,2 ]
Ding, Jianning [1 ,2 ]
机构：
[1] Changzhou Univ, Ctr Low Dimens Mat Micronano Devices & Syst, Jiangsu Key Lab Solar Cell Mat & Technol, Changzhou 213164, Jiangsu, Peoples R China
[2] Jiangsu Collaborat Innovat Ctr Photovolat Sci & E, Changzhou 213164, Jiangsu, Peoples R China
来源：
SOLAR ENERGY | 2014年 / 105卷
基金：
中国国家自然科学基金;
关键词：
ZnO nanorods; Dye-sensitized solar cells; Seed layers; Dye adsorption; TIO2; FILMS; PERFORMANCE; EFFICIENCY; GROWTH; ARRAYS; MORPHOLOGY; SURFACE; TIME;
D O I：
10.1016/j.solener.2014.03.039
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 critical factor in enhancing the conversion efficiency of ZnO nanorod array-based dye-sensitized solar cells (DSSCs) is the dye adsorption, which is determined by the dye adsorptivity of single nanorod and the density of nanorod arrays. We show that the density of the nanorod arrays increases gradually with increasing seed layer thickness, resulting in an enlarged surface area for dye adsorption. In addition, increasing the number of desorption/adsorption cycles can also lead to a continuous increase in the total amount of dye loading. As a result, we observe a significant enhancement in the photocurrent densities and conversion efficiencies of ZnO nanorod array-based DSSCs. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：14 / 19
页数：6
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