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Abstract
Treatment of perovskite surface by bidentate ligands molecules N, N'-Dimethyl-1,2-ethanediamine forms a robust chelated lead iodide layer, stabilizing and passivating the perovskite. This enhances carrier lifetime, adjusts surface energy levels, resulting in perovskite solar cells with 25.7% efficiency (certified 25.04%) and >90% efficiency retention after 1000 hours of aging.
Publisher
Nature Communications
Published On
Sep 04, 2024
Authors
Bin Wen, Tian Chen, Qixin Yin, Jiangsheng Xie, Chaohua Dai, Ruohao Lin, Sicen Zhou, Jiancan Yu, Pingqi Gao
Tags
perovskite
bidentate ligands
solar cells
efficiency
carrier lifetime
surface energy
aging

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