Solution-Processed Nb:SnO2 Electron Transport Layer for Efficient Planar Perovskite Solar Cells

被引：327

作者：

Ren, Xiaodong ^{[1
,2
,3
,4
]}

Yang, Dong ^{[1
,2
,3
,4
]}

Yang, Zhou ^{[1
,2
,3
,4
]}

Feng, Jiangshan ^{[1
,2
,3
,4
]}

Zhu, Xuejie ^{[1
,2
,3
,4
]}

Niu, Jinzhi ^{[1
,2
,3
,4
]}

Liu, Yucheng ^{[1
,2
,3
,4
]}

Zhao, Wangen ^{[1
,2
,3
,4
]}

Liu, Shengzhong Frank ^{[1
,2
,3
,4
,5
]}

机构：

[1] Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem, Natl Minist Educ, Xian 710119, Peoples R China

[2] Shaanxi Normal Univ, Shaanxi Key Lab Adv Energy Devices, Xian 710119, Peoples R China

[3] Shaanxi Normal Univ, Shaanxi Engn Lab Adv Energy Technol, Xian 710119, Peoples R China

[4] Shaanxi Normal Univ, Sch Mat Sci & Engn, Xian 710119, Peoples R China

[5] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2017年 / 9卷 / 03期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

perovskite; Nb:SnO2; low temperature; solution processing; solar cells; LOW-TEMPERATURE; HALIDE PEROVSKITES; TIN OXIDE; SELECTIVE LAYERS; PERFORMANCE; FILMS; GROWTH; SNO2; CRYSTALLIZATION; EXTRACTION;

D O I：

10.1021/acsami.6b13362

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Electron transport layer (ETL), facilitating charge carrier separation and electron extraction, is a key component in planar perovskite solar cells (PSCs). We developed an effective ETL using low-temperature solution-processed Nb-doped SnO, (Nb:SnO2). Compared to the pristine SnO2, the power conversion efficiency of PSCs based on Nb:SnO2 ETL is raised to 17.57% from 15.13%. The splendid performance is attributed to the excellent optical and electronic properties of the Nb:SnO2 material, such as smooth surface, high electron mobility, appropriate electrical conductivity, therefore making a better growth platform for a high quality perovskite absorber layer. Experimental analyses reveal that the Nb:SnO2 ETL significantly enhances the electron extraction and effectively suppresses charge recombination, leading to improved solar cell performance.

引用

收藏

页码：2421 / 2429

页数：9

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