Halide double perovskite Cs2AgInBr6 for photovoltaic’s applications: Optical properties and stability
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Date
2022
Journal Title
Journal ISSN
Volume Title
Publisher
Université de M'sila
Abstract
Theoretical calculations on halide double perovskite Cs2AgInBr6 electronic properties and
optical spectra are carried out. The hybrid functional B3LYP calculations have been used
indicating a 1.427 eV direct to band gap. The optical absorption coefficient has been determined
showing a high-absorption (> 104 cm−1) within a large absorption range suggesting that the
perovskite of interest-based solar cells may reach a good solar efficiency. Based on the refractive
index spectrum, the Cs2AgInBr6 static refractive index is estimated and found to be 2.09. The
stability, phonon spectrum, electron effective mass and absorption spectrum with solar spectrum
at AM1.5 of Cs2AgInBr6 have been computed and verified
Description
Keywords
Cs2AgInBr6 Halide double perovskite Electronic structure Optical spectra Photovoltaic’s Stability