Dual-Function Scattering Layer of Submicrometer-Sized Mesoporous TiO2 Beads for High-Efficiency Dye-Sensitized Solar Cells

被引：405
作者：
Huang, Fuzhi [1 ]
Chen, Dehong [2 ]
Zhang, Xiao Li [1 ]
Caruso, Rachel A. [2 ,3 ]
Cheng, Yi-Bing [1 ]
机构：
[1] Monash Univ, Dept Mat Engn, Melbourne, Vic 3800, Australia
[2] Univ Melbourne, Sch Chem, PFPC, Melbourne, Vic 3010, Australia
[3] CSIRO Mat Sci & Engn, Clayton, Vic 3169, Australia
来源：
ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 08期
基金：
澳大利亚研究理事会;
关键词：
ENERGY-CONVERSION-EFFICIENCY; ZNO NANOCRYSTALLITES; ENHANCEMENT; PERFORMANCE; FILMS;
D O I：
10.1002/adfm.200902218
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Submicrometer-sized (830 +/- 40 nm) mesoporous TiO2 beads are used to form a scattering layer on top of a transparent, 6-mu m-thick, nanocrystalline TiO2 film. According to the Mie theory, the large beads scatter light in the region of 600-800 nm. In addition, the mesoporous structure offers a high surface area, 89.1 m(2) g-(1), which allows high dye loading. The dual functions of light scattering and electrode participation make the mesoporous TiO2 beads superior candidates for the scattering layer in dye-sensitized solar cells. A high efficiency of 8.84% was achieved with the mesoporous beads as a scattering layer, compared with an efficiency of 7.87% for the electrode with the scattering layer of 400-nm TiO2 of similar thickness.
引用
收藏
页码：1301 / 1305
页数：5
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