Introduction of LiCl into SnO2 electron transport layer for efficient planar perovskite solar cells

被引：30

作者：

Huang, Yinyi ^{[1
]}

Li, Shina ^{[2
]}

Wu, Chaorong ^{[1
]}

Wang, Shuo ^{[1
]}

Wang, Chengyan ^{[1
,3
,5
]}

Ma, Ruixin ^{[1
,4
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

[2] MOT, Tianjin Res Inst Water Transport Engn, Tianjin 300000, Peoples R China

[3] Univ Sci & Technol Beijing, Beijing Key Lab Rare & Precious Met Green Recycli, Beijing 100083, Peoples R China

[4] Univ Sci & Technol Beijing, Beijing Key Lab Special Melting & Preparat High E, Beijing 100083, Peoples R China

[5] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou 341000, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2020年 / 745卷

基金：

中国国家自然科学基金;

关键词：

Perovskite solar cell; Tin oxide; Electronic transport layer; Li doping; LOW-TEMPERATURE; PERFORMANCE; STABILITY; OXIDE;

D O I：

10.1016/j.cplett.2020.137220

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：

SnO2 has recently aroused huge attention as an electron transfer material for planar halide perovskite solar cells. Nevertheless, planar structure devices exhibit significant hysteresis behavior and low optical stability for their considerable trap states and high ultraviolet transmittance. In this study, LiCl was added to the SnO2 electron transport layer. As revealed from the results, adding LiCl could enhance the mobility of SnO2 film and promote the optical stability. Lastly, Li:SnO2 devices achieved high power conversion efficiency (PCE) of over 18% and steady-state PCE of 18.35%. Besides, they displayed prominent stability storage under dry conditions.

引用

页数：7

共 37 条

[1] Highly Reproducible Perovskite Solar Cells with Average Efficiency of 18.3% and Best Efficiency of 19.7% Fabricated via Lewis Base Adduct of Lead(II) Iodide [J].

Ahn, Namyoung ;

Son, Dae-Yong ;

Jang, In-Hyuk ;

Kang, Seong Min ;

Choi, Mansoo ;

Park, Nam-Gyu .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (27) :8696-8699

[2]