Hierarchical structure and photocatalysis performance of the photo-anode TiO2 film

被引：4
作者：
Guli, Mina [1 ,2 ]
Deng, Minghan [1 ,2 ]
Bimenyimana, Theogene [1 ,2 ]
Hu, Zhe [1 ,2 ]
机构：
[1] North China Elect Power Univ, Beijing Key Lab Novel Thin Film Solar Cells, Sch Renewable Energy, Beijing 102206, Peoples R China
[2] North China Elect Power Univ, Beijing Key Lab Energy Safety & Clean Utilizat, Beijing 102206, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2017年 / 123卷 / 11期
基金：
中国国家自然科学基金;
关键词：
HOLLOW SPHERES; EFFICIENCY; NANOPARTICLES; PHOTOANODES; MEMBRANE;
D O I：
10.1007/s00339-017-1291-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We herein present a useful technique to design photo-anode films by composing P25 nanoparticles (NPs) with TiO2 nanorod or TiO2 nanotube arrays to optimize the photocatalysis property and overall property of dye-sensitized solar cells (DSSCs). After solvothermal and spincoating process, an interesting hierarchical film containing one-dimensional (1D) TiO2 film and P25 NPs (1D TiO2/P25) was obtained on a fluorine-doped tin oxide substrate. In our study, P25 NPs with high specific surface area can potentially adsorb large numbers of dye molecules when 1D TiO2 arrays provide a straight path for rapid transmission of photo-generated electrons. From the experiment results, the hierarchical photo-anodes indeed exhibit superior properties than that of pristine 1D films. The photoelectric conversion efficiency improves up to 3.96 and 3.69% based on 1D TiO2/P25 DSSCs, which are significantly higher than those of 3.21 and 2.70% of the DSSCs based on 1D TiO2 photoanodes.
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页数：7
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