Simple Preparation of Fluorine-Doped TiO2 Photoanode for High Performance Dye Sensitized Solar Cells

被引：21
|
作者：
Song, Jun-Ling [1 ,2 ]
Wang, Xiu [3 ]
Wong, C. C. [3 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
[2] Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 637371, Singapore
[3] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
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; TiO2; Photoanode; Improving electron Transport; Retarding Charge Recombination; Surface Treatment; ELECTRON-TRANSPORT; IMPROVED EFFICIENCY; RECOMBINATION; IMPEDANCE; GENERATION; DIFFUSION; MODEL; FILM;
D O I：
10.1016/j.electacta.2015.05.118
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
TiO2 nanocrystallites with titanium (IV) fluoride treatment were fabricated and studied as dye sensitized solar cells photoanode. F doping into pre-existing mesoporous TiO2 is achieved by a simple hydrolysis method. Overall photo-to-current conversion-efficiency of the device could be enhanced up to 23% due to the increase of photocurrent density, fill factor and open-circuit voltage, compared with undoped TiO2. From electrochemical impedance measurements, we deduce that the presence of F dopants enhances cell performance by improving the charge transport and retarding the recombination process in the photoanode. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：834 / 838
页数：5
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