An antibonding valence band maximum enables defect-tolerant and stable GeSe photovoltaics

Perovskite-like antibonding VBM electronic structure is predicted to result in defect-tolerant materials. Here, the authors investigate GeSe with antibonding VBM from Ge 4s-Se 4p coupling, and a certified 5.2% PCE is obtained with high stability due to its strong covalent bonding.

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Autores principales: Shun-Chang Liu, Chen-Min Dai, Yimeng Min, Yi Hou, Andrew H. Proppe, Ying Zhou, Chao Chen, Shiyou Chen, Jiang Tang, Ding-Jiang Xue, Edward H. Sargent, Jin-Song Hu
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/3ad65eaaf90b4172afb09d09ff7c123a
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