Organic-inorganic hybrid electron transport layer of PVP-doped SnO2 for high-efficiency stable perovskite solar cells

被引：11
|
作者：
Qiu, Linlin [1 ]
Mei, Deqiang [1 ]
Chen, Wei-Hsiang [2 ]
Yuan, Yongfeng [4 ]
Song, Lixin [1 ,3 ]
Chen, Liang [1 ]
Bai, Bing [1 ]
Du, Pingfan [1 ,3 ]
Xiong, Jie [1 ,3 ]
机构：
[1] Zhejiang Sci Tech Univ, Coll Text Sci & Engn, Hangzhou 310018, Peoples R China
[2] Huzhou Univ, Sch Sci, Huzhou 313000, Zhejiang, Peoples R China
[3] Zhejiang Sci Tech Univ, Key Lab Adv Text Mat & Mfg Technol, Minist Educ, Hangzhou 310018, Peoples R China
[4] Zhejiang Sci Tech Univ, Coll Machinery & Automat, Hangzhou 310018, Peoples R China
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2022年 / 248卷
关键词：
Perovskite solar cells; SnO2; PVP; Organic-inorganic hybrid electron transport; layer; PERFORMANCE; HYSTERESIS; STABILITY; POLYMER; VOLTAGE;
D O I：
10.1016/j.solmat.2022.112032
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：
SnO2 is one of the most popular low-cost inorganic electron transport materials for perovskite solar cells. However, the agglomeration of SnO2 nanoparticles causes their uneven distribution and the existence of pin-holes, seriously hindering the electron migration across SnO2/perovskite interface and limiting the device per-formance. The poor wettability between the SnO2 film and the perovskite precursor solution also impairs the growth of perovskite grains. In this work, an innovative strategy was employed to produce an organic-inorganic hybrid electron transport layer (ETL) by fabricating a high-quality polyvinylpyrrolidone (PVP)/SnO2 perovskite film with few defects and good wettability. In turn, a PVP-SnO2 based device exhibits elevated power conversion efficiency (PCE) (18.98%) and adequate reproducibility along with superior operational stability.
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页数：8
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