Co-Electrodeposition of Sn-Doped TiO2 Electron-Transporting Layer for Perovskite Solar Cells

被引：19
作者：
Su, Tzu-Sen [1 ]
Wei, Tzu-Chien [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu 300, Taiwan
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2020年 / 217卷 / 01期
关键词：
electrodeposition; electron-transporting layers; metal-doping; perovskite solar cells; titanium dioxide; COMPACT LAYER; EFFICIENT; PERFORMANCE; NB; INJECTION; LESS;
D O I：
10.1002/pssa.201900491
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sn-doped TiO2 films are successfully co-electrodeposited from a single bath containing TiCl3 and SnCl2, providing a new and facile method for the preparation of metal-doped TiO2 thin films. Through systematic examinations on the film morphologies, optical, and electronic properties of the electrodeposited TiO2 films with different Sn-doping amount, it is utilized as the electron-transporting layer (ETL) in a perovskite solar cell (PSC). The photovoltaic performance of PSCs equipped with electrodeposited Sn-doped TiO2 ETL is improved considerably, which is mainly attributed to the increased carrier concentration and improved electron extraction capability due to Sn-doping. Currently, power conversion efficiency of planar-type PSC using 5% (molar ratio) Sn-doped TiO2 ETL achieves 16.8%, corresponding to a 9.8% improvement when comparing with the sample using pure TiO2 (15.3%).
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页数：9
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