Interfacial Dipoles Boost Open-Circuit Voltage of Tin Halide Perovskite Solar Cells

Shi, Yuedong; Zhu, Zihao; Miao, Donghao; Ding, Yuchen; Mi, Qixi

doi:10.1021/acsenergylett.4c00529

articleACS Energy LettersApr 2, 2024Closed access

Interfacial Dipoles Boost Open-Circuit Voltage of Tin Halide Perovskite Solar Cells

YSYuedong Shi ZZZihao Zhu DMDonghao Miao YDYuchen Ding QMQixi Mi

ShanghaiTech University

Indexed incrossref

Abstract

Tin halide perovskites are promising materials for real-world photovoltaic applications, and there is large room for their performance to grow. We improved energy-level alignment between the perovskite and electron transport layers by introducing 4-fluorophenethylamine hydrobromide as an interfacial dipole. Thus, the open-circuit voltage of FASnI3 solar cells increased to 0.974 V and their power conversion efficiency reached 15.7%, representing a significant advance in this field.

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Topics & keywords

Topics

Keywords

Perovskite (structure)
Halide
Open-circuit voltage
Photovoltaic system
Energy conversion efficiency
Optoelectronics
Materials science
Tin

UN Sustainable Development Goals

Affordable and clean energy

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