Titanium dioxide/calcium fluoride nanocrystallite for efficient dyesensitized solar cell. A strategy of enhancing light harvest

被引：33
作者：
Wang, Zubin [1 ,2 ]
Tang, Qunwei [1 ,2 ]
He, Benlin [1 ,2 ]
Chen, Xiaoxu [2 ]
Chen, Haiyan [2 ]
Yu, Liangmin [1 ,3 ]
机构：
[1] Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China
[2] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
[3] Ocean Univ China, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266100, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2015年 / 275卷
基金：
中国国家自然科学基金;
关键词：
Dye-sensitized solar cell; Photoanode; Titanium dioxide/calcium fluoride; Light harvest; Light interference; ALLOY COUNTER ELECTRODES; MESOPOROUS TIO2; ENHANCEMENT; PERFORMANCE;
D O I：
10.1016/j.jpowsour.2014.11.006
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：
Enhancement of light harvest for dye excitation is a persistent objective in dye-sensitized solar cell (DSSC). We present here the fabrication of titanium dioxide/calcium fluoride (TiO2/CaF2) photoanodes for efficient DSSC applications. Owing to the interference effect of incident light beams reflected from TiO2/CaF2 and CaF2/electrolyte interfaces, the light intensity and therefore dye excitation have been markedly enhanced. The crystal structure and therefore photovoltaic performance are optimized by adjusting CaF2 dosage. A maximum power conversion efficiency of 7.66% is measured from the DSSC employing TiO2/ 0.5 wt% CaF2 nanocrystallite in comparison with 6.02% for the solar cell with pristine TiO2 anode. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：175 / 180
页数：6
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