Novel structure of TiO2-ZnO core shell rice grain for photoanode of dye-sensitized solar cells

被引：21
作者：
Song, Lixin [1 ,2 ]
Jiang, Qingxu [1 ,2 ]
Du, Pingfan [1 ,2 ]
Yang, Yefeng [1 ,2 ]
Xiong, Jie [1 ,2 ]
Cui, Can [3 ]
机构：
[1] Zhejiang Sci Tech Univ, Coll Mat & Text, Hangzhou 310018, Zhejiang, Peoples R China
[2] Zhejiang Sci Tech Univ, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Hangzhou 310018, Zhejiang, Peoples R China
[3] Zhejiang Sci Tech Univ, Sch Sci, Hangzhou 310018, Zhejiang, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2014年 / 261卷
关键词：
Titanium dioxide; Zinc oxide; Core shell; Rice grain; Dye-sensitized solar cells; HIGH-EFFICIENCY; SOLID-STATE; ELECTRON-TRANSPORT; PHOTOCATALYTIC DEGRADATION; NANOPOROUS ELECTRODE; ENERGY CONVERSION; NANOTUBE ARRAYS; SHAPED TIO2; ZNO; PERFORMANCE;
D O I：
10.1016/j.jpowsour.2014.03.030
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：
The TiO2-ZnO core shell rice grains are prepared by coaxial electrospinning and calcination. These core shell rice grains have the length of 300-800 nm and the BET surface area of 66.3 m(2) g(-1). They consist of anatase TiO2 (core) and wurtzite ZnO (shell). Using this novel structure as the photoanodic material, the dye-sensitized solar cells (DSSCs) have the conversion efficiency (eta) of 5.31%, which is increased by 23.9% in comparison with that of the DSSCs based on the TiO2 rice grains. This is mainly ascribed to the improvement in both light harvesting efficiency and electron collection efficiency, and the effective suppression of charge recombination. (c) 2014 Elsevier B.V. All rights reserved.
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页码：1 / 6
页数：6
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