Facile fabrication of highly efficient ETL-free perovskite solar cells with 20% efficiency by defect passivation and interface engineering

被引：82

作者：

Huang, Chun ^{[1
,2
]}

Lin, Peng ^{[1
]}

Fu, Nianqing ^{[3
]}

Liu, Chang ^{[4
]}

Xu, Baomin ^{[4
]}

Sun, Kaiwen ^{[5
]}

Wang, Danyang ^{[6
]}

Zeng, Xierong ^{[1
]}

Ke, Shanming ^{[1
,7
]}

机构：

[1] Shenzhen Univ, Shenzhen Key Lab Special Funct Mat, Shenzhen Engn Lab Adv Technol Ceram, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China

[2] Shenzhen Univ, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Coll Optoelect Engn, Shenzhen 518060, Peoples R China

[3] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

[4] Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518060, Peoples R China

[5] Univ New South Wales, Sch Photovolta & Renewable Energy Engn, Sydney, NSW 2052, Australia

[6] Univ New South Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

[7] Nanchang Univ, Sch Mat Sci & Engn, Nanchang 330031, Jiangxi, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2019年 / 55卷 / 19期

基金：

中国国家自然科学基金;

关键词：

LOW-COST; ELECTRON; LENGTHS;

D O I：

10.1039/c9cc00312f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Tetramethylammonium hydroxide (TMAH) is employed to modify the surface and electrical properties of fluorine-doped tin oxide (FTO) electrodes in perovskite solar cells. Synchronously, owing to the flow of unbound TMA(+) ions into the perovskite, the trap density of the perovskite overlayer is largely reduced. Conductivity of the grain boundaries in the perovskite layer is also greatly increased. A high efficiency of 20.1% along with a reduced J-V hysteresis in our champion perovskite solar cells without electron transport layers is achieved.

引用

页码：2777 / 2780

页数：4

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