Potassium Acetate Passivated SnO2 Interface for High-Efficiency Two-Step Deposited Perovskite Solar Cells

Wenqiang Li; Shuo Ding; Chunyan Wu; Lei Qian; Chaoyu Xiang

doi:10.1002/adsu.202300124

Potassium Acetate Passivated SnO₂ Interface for High-Efficiency Two-Step Deposited Perovskite Solar Cells

Wenqiang Li, Shuo Ding, Chunyan Wu, Lei Qian, Chaoyu Xiang

Department of Mechanical, Materials and Manufacturing Engineering

Research output: Journal Publication › Article › peer-review

3 Citations (Scopus)

Abstract

The quality of the tin dioxide interface has an important impact on the performance of perovskite solar cells. Herein, a facile potassium acetate strategy to effectively treat the SnO₂/perovskite interface and enhance the film quality of perovskite crystals is used. The defect density at the interface can be reduced, thereby suppressing the nonradiative recombination of excitons. Enhanced performance of the two-step deposited perovskite device is obtained with an open-circuit voltage (V_OC) of 1.173 V, a fill factor of 78.31%, and a power conversion efficiency of 23.63%.

Original language	English
Article number	2300124
Journal	Advanced Sustainable Systems
Volume	7
Issue number	9
DOIs	https://doi.org/10.1002/adsu.202300124
Publication status	Published - Sept 2023

Keywords

defect passivation
electron transport layers
perovskite solar cells

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Environmental Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/adsu.202300124

Cite this

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title = "Potassium Acetate Passivated SnO2 Interface for High-Efficiency Two-Step Deposited Perovskite Solar Cells",

abstract = "The quality of the tin dioxide interface has an important impact on the performance of perovskite solar cells. Herein, a facile potassium acetate strategy to effectively treat the SnO2/perovskite interface and enhance the film quality of perovskite crystals is used. The defect density at the interface can be reduced, thereby suppressing the nonradiative recombination of excitons. Enhanced performance of the two-step deposited perovskite device is obtained with an open-circuit voltage (VOC) of 1.173 V, a fill factor of 78.31%, and a power conversion efficiency of 23.63%.",

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AU - Li, Wenqiang

AU - Ding, Shuo

AU - Wu, Chunyan

AU - Qian, Lei

AU - Xiang, Chaoyu

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AB - The quality of the tin dioxide interface has an important impact on the performance of perovskite solar cells. Herein, a facile potassium acetate strategy to effectively treat the SnO2/perovskite interface and enhance the film quality of perovskite crystals is used. The defect density at the interface can be reduced, thereby suppressing the nonradiative recombination of excitons. Enhanced performance of the two-step deposited perovskite device is obtained with an open-circuit voltage (VOC) of 1.173 V, a fill factor of 78.31%, and a power conversion efficiency of 23.63%.

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