Novel core-shell TiO2 microsphere scattering layer for dye-sensitized solar cells

被引：42
|
作者：
Feng, Jiangwei [1 ]
Hong, Yang [1 ]
Zhang, Jing [1 ]
Wang, Peiqing [1 ]
Hu, Ziyang [1 ]
Wang, Qin [1 ]
Han, Liyuan [2 ]
Zhu, Yuejin [1 ]
机构：
[1] Ningbo Univ, Dept Phys, Ningbo 315211, Zhejiang, Peoples R China
[2] Natl Inst Mat Sci, Photovolta Mat Unit, Tsukuba, Ibaraki, Japan
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 05期
基金：
中国国家自然科学基金;
关键词：
HOLLOW SPHERES; PHOTOVOLTAIC PERFORMANCE; NANOCRYSTALLINE TIO2; LIGHT-SCATTERING; EFFICIENCY; FABRICATION; CONVERSION; BEADS; FILM;
D O I：
10.1039/c3ta13523c
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Core-shell TiO2 microspheres were synthesised by a one step solvothermal method in ethanol solvent. The single anatase TiO2 core-shell structure exhibited high reflectance and large surface area due to its special structure. When applied in the dye-sensitized solar cells (DSCs), this micro-spherical core-shell structure effectively enhanced light harvesting and led to the increase of the photocurrent of the DSCs. As a result, 29% improvement in conversion efficiency of DSCs was achieved after introducing the core-shell TiO2 scattering layer. A comparative experiment between the core-shell structure and a solid structure further confirmed that the core-shell structure is more beneficial for light scattering and photovoltaic performance. The excellent properties of the microspherical core-shell TiO2 make it a promising candidate as a scattering material for DSCs.
引用
收藏
页码：1502 / 1508
页数：7
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