Improved open-circuit voltage via Cs2CO3-Doped TiO2 for high-performance and stable perovskite solar cells

被引：9
|
作者：
Zong, Hao [1 ]
Lou, Yan-Hui [2 ,3 ]
Li, Meng [1 ]
Wang, Kai-Li [1 ]
Jain, Sagar M. [4 ]
Wang, Zhao-Kui [1 ]
机构：
[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China
[2] Soochow Univ, Coll Phys Optoelect & Energy, Suzhou 215006, Peoples R China
[3] Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Suzhou 215006, Peoples R China
[4] Swansea Univ, Coll Engn, SPECIFIC, Bay Campus,Fabian Way, Swansea SA1 8EN, W Glam, Wales
来源：
ORGANIC ELECTRONICS | 2020年 / 77卷
基金：
国家重点研发计划; 英国工程与自然科学研究理事会;
关键词：
Perovskite solar cells; Cs2CO3; TiO2; Electron-transporting; Stability; EFFICIENCY; INTERFACE;
D O I：
10.1016/j.orgel.2019.105495
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Organic-inorganic metal halide perovskites have drawn the interest of scientific community due to their suitable optoelectmnic properties and high solar cell efficiency. In this report, we demonstrated, for the first time, the application of Cs2CO3 - doped TiO2 as an efficient electron-transporting layer (ETL) in PSCs. Remarkably, the optimized Cs2CO3-doped TiO2 films exhibited improved wetting properties which assisted the deposition of perovskite films and improved the TiO2/perovskite interface by lowering the work function. With X-ray diffraction studies, better crystalline of the perovskite films could be found in the doped devices. Solar cells prepared with the Cs2CO3-doped TiO2 as ETL resulted in a 19% efficiency performance and improved stability.
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页数：5
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