Enhanced Electrons Extraction of Lithium-Doped SnO2 Nanoparticles for Efficient Planar Perovskite Solar Cells

被引：11

作者：

Ahmad, Waseem ^{[1
]}

Liu, Detao ^{[1
]}

Wu, Jiang ^{[2
]}

Ahmad, Waqas ^{[1
]}

Wang, Yafei ^{[1
]}

Zhang, Peng ^{[1
]}

Zhang, Ting ^{[1
]}

Zheng, Hualin ^{[1
]}

Chen, Li ^{[1
]}

Chen, Zhi David ^{[3
,4
]}

Li, Shibin ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Sch Optoelect Sci & Engn, Chengdu 610054, Sichuan, Peoples R China

[2] UCL, London WC1E 6BT, England

[3] Univ Kentucky, Dept Elect & Comp Engn, Lexington, KY 40506 USA

[4] Univ Kentucky, Ctr Nanoscale Sci & Engn, Lexington, KY 40506 USA

来源：

IEEE JOURNAL OF PHOTOVOLTAICS | 2019年 / 9卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Lithium doping; low annealing process; perovskite solar cells (PSCs); SnO2; nanoparticles; LOW-TEMPERATURE; PHOTOVOLTAIC PERFORMANCE; TRANSPORTING LAYER; THIN-FILMS; TIN OXIDE; STABILITY; TIO2; NANOCRYSTALS; DEPOSITION; LENGTHS;

D O I：

10.1109/JPHOTOV.2019.2924734

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Hybrid lead halide perovskite solar cells (PSCs) are amongst those efficient solar cell technologies which are developing rapidly. The rapid advancement in PSCs technology is because of favorable properties of perovskite materials and addition of charge selective layers. Here, we report lithium-doped SnO2 electron transport layer (ETL) to improve electrons extraction from the perovskite absorbing layer. The lithium-doped SnO2 not only shows relatively higher conductivity, reduced oxygen-deficient regions, improved oxidation state, but also induces a larger grain size of perovskite films. This leads to an improvement in all related photovoltaic parameters of the methylammonium lead iodide (MAPbI(3)) planar heterojunction PSCs. The champion device yields a power conversion efficiency of 19.09%. The simple solution and lower annealing processed ETLs are compatible with almost all substrates used in PSCs and other perovskite-based devices.

引用

页码：1273 / 1279

页数：7

共 55 条

[1] Physisorption of Oxygen in SnO2 Nanoparticles for Perovskite Solar [J].