Effect of Optimization of TiO2 Electron Transport Layer on Performance of Perovskite Solar Cells with Rough FTO Substrates

The film quality of the electron transport layer (ETL) plays an important role in improving the performance of perovskite solar cells (PSCs). In order to reduce the effect of rough fluorine-doped SnO2 (FTO)substrate on the film quality of the TiO2 ETL, multiple cycles of spin-coating were employed t...

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Published inMaterials Vol. 13; no. 10; p. 2272
Main Authors Wang, Junqi, Zou, Xiaoping, Zhu, Jialin, Cheng, Jin, Chen, Dan, Bai, Xiao, Yao, Yujun, Chang, Chuangchuang, Yu, Xing, Liu, Baoyu, Zhou, Zixiao, Li, Guangdong
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 15.05.2020
MDPI
Subjects
Carbon
Electrodes
Electron transport
Ethanol
Fluorine
Glass substrates
Optimization
Performance enhancement
Perovskites
Photovoltaic cells
Solar cells
Spin coating
Substrates
Tin dioxide
Titanium dioxide
China
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Summary:The film quality of the electron transport layer (ETL) plays an important role in improving the performance of perovskite solar cells (PSCs). In order to reduce the effect of rough fluorine-doped SnO2 (FTO)substrate on the film quality of the TiO2 ETL, multiple cycles of spin-coating were employed to realize optimized TiO2 film and improve the performance of PSCs with rough FTO. The results show that TiO2 ETL was optimized most effectively using two spin-coating cycles, obtaining the best performance of PSCs with rough FTO. The carbon electrode-based PSCs were then demonstrated. Our work discusses the feasibility of low-quality rough FTO for the fabrication of PSCs and photodetectors to reduce costs.
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ISSN:1996-1944
1996-1944
DOI:10.3390/ma13102272