Unusual defect properties of the one-dimensional photovoltaic semiconductor selenium

Chem. Commun., 2024, Accepted Manuscript DOI: 10.1039/D4CC03174A, Communication Zongbao Li, Xiaoyan An, Xia Wang, Wenbo Lu, Xin Wen, Xing Zhang, Ding-Jiang Xue Defect tolerance is crucial in photovoltaic absorbers. Here we report that trigonal selenium (t-Se) exhibits a perovskite-like antibonding valence band maximum arising from Se p-p coupling. This results in the...