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Sustainable thermal regulation improves stability and efficiency in all-perovskite tandem solar cells

Chemistry

Sustainable thermal regulation improves stability and efficiency in all-perovskite tandem solar cells

S. Tan, C. Li, et al.

Discover groundbreaking advancements in mixed Sn-Pb perovskites, enhancing their stability and efficiency for photovoltaic applications! This innovative research, conducted by Shuchen Tan and colleagues, employs a novel thermal regulation strategy using *ortho*-carborane, significantly increasing heat transfer and prolonging cell efficiency. Experience enhanced thermal stability and impressive performance in all-perovskite tandems.

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Playback language: English
Abstract
Mixed Sn-Pb perovskites are promising photovoltaic materials, but their scalability and application require improved stability. Poor thermal conductivity leads to heat accumulation, accelerating degradation. This research introduces a thermal regulation strategy using carboranes, specifically *ortho*-carborane (*o*-CB), improving heat transfer. *o*-CB lowers surface temperature, facilitates hole extraction, and reduces recombination. Mixed Sn-Pb cells show enhanced thermal stability (80% efficiency after 1080 h at 85 °C). All-perovskite tandems achieve efficiencies over 27%, maintaining 87% initial PCE after 704 h of operation.
Publisher
Nature Communications
Published On
May 16, 2024
Authors
Shuchen Tan, Chongwen Li, Cheng Peng, Wenjian Yan, Hongkai Bu, Haokun Jiang, Fang Yue, Linbao Zhang, Hongtao Gao, Zhongmin Zhou
Tags
Sn-Pb perovskites
photovoltaic materials
thermal stability
carboranes
efficiency
heat transfer
degradation

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