Controllable in-situ preparation of high-coverage horizontal TiO2 nanosheet array

[Display omitted] •In-situ controllable preparation of horizontal TiO2 nanosheet array is realized.•The formation of horizontal TiO2 nanosheet array is interpreted.•High-coverage TiO2 nanosheet array is used as an ETL to prepare PSCs. TiO2 is an important electron transport material in perovskite so...

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Bibliographic Details
Published inChemical physics letters Vol. 765; p. 138284
Main Authors Wang, Junqi, Zou, Xiaoping, Zhu, Jialin, Cheng, Jin, Bai, Xiao, Yao, Yujun, Chang, Chuangchuang, Yu, Xing, Liu, Baoyu, Zhou, Zixiao, Li, Guangdong, Chen, Dan
Format Journal Article
LanguageEnglish
Published Elsevier B.V 16.02.2021
Subjects
Semiconductors
Solar energy materials
Thin films
Thin films
Semiconductors
Solar energy materials
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Summary:[Display omitted] •In-situ controllable preparation of horizontal TiO2 nanosheet array is realized.•The formation of horizontal TiO2 nanosheet array is interpreted.•High-coverage TiO2 nanosheet array is used as an ETL to prepare PSCs. TiO2 is an important electron transport material in perovskite solar cells (PSCs). Some researchers have prepared dense TiO2 particles and mesoporous TiO2, but there are few reports on preparation of TiO2 nanosheets for solar cells. We have prepared in-situ controllable TiO2 nanosheet array on the fluorine-doped tin oxide (FTO) substrate with multiple spin-coating method, and the nanosheets were horizontally arranged in order with good shape consistency. Our research provides references for the preparation of solar cells with TiO2 nanosheets as electron transport layer (ETL).
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2020.138284