Preparation and photovoltaic properties of layered TiO2/carbon nanotube/TiO2 photoanodes for dye-sensitized solar cells

被引：7
|
作者：
Barberio, M. [1 ]
Grosso, D. R. [2 ]
Imbrogno, A. [1 ]
Xu, E. [1 ]
机构：
[1] Univ Calabria, Dept Biol Ecol & Earth Sci, I-87036 Arcavacata Di Rende, Italy
[2] Univ Calabria, Dept Mech Energet & Management Engn, I-87036 Arcavacata Di Rende, Italy
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2016年 / 91卷
关键词：
Carbon based nanomaterials; DSSC solar cells; Photoanode; Nanostructures; TIO2;
D O I：
10.1016/j.spmi.2016.01.012
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this paper, we report on the realization of photoanodes for dye sensitized solar cells based on composites of carbon nanotubes and titanium dioxide nanoparticles. Our results show the best photovoltaics performance for carbon nanotubes weight percentages between 0.2% and 0.4%. Photoanodes realized in three-layer configuration, TiO2/carbon nanotube/TiO2, show a cell efficiency of 10.5% and a fill factor of 70%, values 2.4 times greater with respect to that of classical TiO2 anode. The presence of carbon nanotubes enhances the charge transport, strongly reducing the electron/hole recombination in the anode bulk, while the double layer of TiO2 increases the dye adsorption limiting the reduction caused by the presence of carbon nanotubes. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：158 / 164
页数：7
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