Preparation of titanium dioxide-double-walled carbon nanotubes and its application in flexible dye-sensitized solar cells

被引：7
作者：
Cunxi Cheng
Jihuai Wu
Yaoming Xiao
Yuan Chen
Haijun Yu
Ziying Tang
Jianming Lin
Miaoliang Huang
机构：
[1] Institute of Materials Physical Chemistry, Huaqiao University, Quanzhou
来源：
Frontiers of Optoelectronics | 2012年 / 5卷 / 2期
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
double-walled carbon nanotube (DWCNT); sol-gel method;
D O I：
10.1007/s12200-012-0198-5
中图分类号：
学科分类号：
摘要：
Titanium dioxide-double-walled carbon nanotubes (TiO2-DWCNTs) with DWCNTs/TiO2 of 20 wt.% is prepared by a conventional sol-gel method. Doping the TiO2-DWCNTs in TiO2 photoanode, a flexible dye-sensitized solar cell (DSSC) is fabricated. The sample is characterized by scanning electron microscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) absorption, ultraviolet-visible spectroscopy (UVvis) absorption spectra, electrochemical impedance spectroscopy (EIS) technique and photovoltaic measurement. It is found that adding a certain amount of TiO2-DWCNTs can efficiently decrease the resistance of charge transport, improve dye adsorption. Under an optimal condition, a flexible DSSC contained with 0. 50 wt.% TiO2-DWCNTs achieves a light-to-electric energy conversion efficiency of 3. 89% under a simulate solar light irradiation of 100mW·cm-2. © 2012 Higher Education Press and Springer-Verlag Berlin Heidelberg.
引用
收藏
页码：224 / 230
页数：6
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