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A Sodium Chloride Modification of SnO2 Electron Transport Layers to Enhance the Performance of Perovskite Solar Cells.

ABSTRACT: A sodium chloride modification was applied where different amounts of sodium chloride was physically blended in a tin oxide colloid solution to passivate the interface between the electron transport layer (ETL) and perovskite layer and improve the performance of perovskite solar cells. Sodium chloride-modified tin oxide was utilized as the electron transport material to fabricate perovskite solar cells. It was found that sodium chloride-modified tin oxide as an ETL could considerably enhance the performance of the device compared to pristine tin oxide. The power conversion efficiency of the perovskite solar cell displayed 8.8% remarkable improvement from 18.7 ± 0.4% to 20.3 ± 0.3% on average and 9.5% improvement from 18.9 to 20.7% in champion devices because of the considerable enhancement of the fill factor when 25 mM sodium chloride-modified tin oxide as the ETL was used in comparison with pristine tin oxide.

SUBMITTER: Lin CC 

PROVIDER: S-EPMC8296025 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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A Sodium Chloride Modification of SnO<sub>2</sub> Electron Transport Layers to Enhance the Performance of Perovskite Solar Cells.

Lin Ching Chang CC   Murakami Takurou N TN   Chikamatsu Masayuki M   Bessho Takeru T   Furue Miwako M   Segawa Hiroshi H  

ACS omega 20210702 28

A sodium chloride modification was applied where different amounts of sodium chloride was physically blended in a tin oxide colloid solution to passivate the interface between the electron transport layer (ETL) and perovskite layer and improve the performance of perovskite solar cells. Sodium chloride-modified tin oxide was utilized as the electron transport material to fabricate perovskite solar cells. It was found that sodium chloride-modified tin oxide as an ETL could considerably enhance the  ...[more]

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