Self-assembled bilayer for perovskite solar cells with improved tolerance against thermal stresses

Dong, Bitao; Wei, Mingyang; Li, Yuheng; Yang, Yingguo; Ma, Wei; Zhang, Yueshuai; Ran, Yanbiao; Cui, Meijie; Su, Zhongbo; Fan, Qunping; Bi, Zhaozhao; Edvinsson, Tomas; Ding, Zhiqin; Ju, Huanxin; You, Shuai; Zakeeruddin, Shaik M.; Li, Xiong; Hagfeldt, Anders; Grätzel, Michaël; Liu, Yuhang

doi:10.1038/s41560-024-01689-2

articleNature EnergyJan 6, 2025HYBRID OA

Self-assembled bilayer for perovskite solar cells with improved tolerance against thermal stresses

BDBitao Dong MWMingyang Wei YLYuheng Li YYYingguo Yang WMWei Ma

Uppsala University · Xi'an Jiaotong University · +7 more institutions

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Abstract

The adoption of perovskite solar cells (PSCs) requires improved resistance to high temperatures and temperature variations. Hole-selective self-assembled monolayers (SAMs) have enabled progress in the performance of inverted PSCs, yet they may compromise temperature stability owing to desorption and weak interfacial contact. Here we developed a self-assembled bilayer by covalently interconnecting a phosphonic acid SAM with a triphenylamine upper layer. This polymerized network, formed through Friedel–Crafts alkylation, resisted thermal degradation up to 100 °C for 200 h. Meanwhile, the face-on-oriented upper layer exhibited adhesive contact with perovskites, leading to a 1.7-fold improvement in adhesion energy…

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178

total citations

FWCI: 102.07
Percentile: 100%
References: 65

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Authors

20

Topics & keywords

Topics

Keywords

Materials science
Perovskite (structure)
Energy conversion efficiency
Bilayer
Chemical engineering
Layer (electronics)
Monolayer
Thermal stability

UN Sustainable Development Goals

Affordable and clean energy

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