SrTiO3 modified TiO2 electrodes and improved dye-sensitized TiO2 solar cells

被引：17
|
作者：
Wu, Sujuan [1 ]
Gao, Xingsen [1 ]
Qin, Minghui [1 ]
Liu, J. -M. [2 ,3 ]
Hu, Shejun [1 ]
机构：
[1] S China Normal Univ, Sch Phys & Telecommun Engn, Adv Mat Lab, Guangzhou 510006, Guangdong, Peoples R China
[2] Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[3] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 04期
基金：
中国国家自然科学基金;
关键词：
PLASMA TREATMENT; SURFACE MODIFICATION; PERFORMANCE; FILM; COATINGS; STATE;
D O I：
10.1063/1.3617460
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The SrTiO3-coated TiO2 (TiO2/SrTiO3) electrodes prepared by radio frequency magnetron sputtering are used to improve the performance of dye-sensitized TiO2 solar cells by means of surface modification. The structural and performance characterizations reveal that the TiO2/SrTiO3 electrodes, in comparison with fresh TiO2 electrodes, have low density of oxygen vacancies, passivated surface states, and suppressed interfacial recombination effect, thus resulting in improved performance parameters of the cells. An optimized coating of SrTiO3 layer on the TiO2 film surface allows an enhancement of the power conversion efficiency from 4.78% to 5.91%. (C) 2011 American Institute of Physics. [doi:10.1063/1.3617460]
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页数：3
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