Effect of SnO2 Colloidal Dispersion Solution Concentration on the Quality of Perovskite Layer of Solar Cells

被引：11

作者：

Song, Keke ^{[1
]}

Zou, Xiaoping ^{[2
]}

Zhang, Huiyin ^{[1
]}

Zhang, Chunqian ^{[2
]}

Cheng, Jin ^{[2
]}

Liu, Baoyu ^{[1
]}

Yao, Yujun ^{[2
]}

Wang, Xiaolan ^{[2
]}

Li, Xiaotong ^{[2
]}

Wang, Yifei ^{[2
]}

Ren, Baokai ^{[2
]}

机构：

[1] Beijing Informat Sci & Technol Univ, Sch Instrument Sci & Opto Elect Engn, Beijing 100101, Peoples R China

[2] Beijing Informat Sci & Technol Univ, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing Key Lab Sensor, Beijing 100101, Peoples R China

来源：

COATINGS | 2021年 / 11卷 / 05期

基金：

中国国家自然科学基金;

关键词：

perovskite solar cell; electron transport layer; SnO2 colloidal dispersion solution; the low temperature; ELECTRON-TRANSPORT LAYER; LOW-TEMPERATURE; EFFICIENCY; PERFORMANCE; TIO2;

D O I：

10.3390/coatings11050591

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electron transport layer (ETL) is critical to carrier extraction for perovskite solar cells (PSCs). Moreover, the morphology and surface condition of the ETL could influence the topography of the perovskite layer. ZnO, TiO2, and SnO2 were widely investigated as ETL materials. However, TiO2 requires a sintering process under high temperature and ZnO has the trouble of chemical instability. SnO2 possesses the advantages of low-temperature fabrication and high conductivity, which is critical to the performance of PSCs prepared under low temperature. Here, we optimized the morphology and property of SnO2 by modulating the concentration of a SnO2 colloidal dispersion solution. When adjusting the concentration of SnO2 colloidal dispersion solution to 5 wt.% (in water), SnO2 film indicated better performance and the perovskite film has a large grain size and smooth surface. Based on high efficiency (16.82%), the device keeps a low hysteresis index (0.23).

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页数：10

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