Affiliation:
1. School of Science Chongqing University of Technology Chongqing 400054 P. R. China
2. Graduate School of Engineering Toin University of Yokohama 1614 Kuroganecho, Aoba Yokohama Kanagawa 225-8503 Japan
Abstract
Organic–inorganic halide perovskite have shown great promise for photovoltaic applications due to their unprecedented optoelectronic properties and low manufacturing cost. However, the commercialization of this emerging technology is hampered by its thermal instability and intrinsic Pb‐toxicity. Here, we report first‐principles investigations on stability and optoelectronic properties of a series of all‐inorganic lead‐free metal halide perovskite‐like materials AMX4 (A = Cs, Ag, and Rb; M = In, Sb, and Bi; X = Cl, Br, and I). Our calculations show that AgSbI4 and AgBiI4 have direct bandgaps of 1.63 and 1.44 eV, which possess strong interband optical absorption (≈105 cm−1). Based on these favorable properties, we also simulated the AgSbI4‐ and AgBiI4‐based thin film solar cells with the SCAPS‐1D code and achieve high PCE of 24.19% and 26.70%, respectively. These results reveal that the AMX4 perovskite‐like materials could serve as potential alternatives to Pb‐based halide perovskites in photovoltaic devices.
Funder
Natural Science Foundation Project of Chongqing, Chongqing Science and Technology Commission
Subject
Condensed Matter Physics,General Materials Science
Cited by
1 articles.
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