Halide Perovskite-Derived for Mesoscopic Solar Cell: Electronic Structure and XPS Spectra

It is new study of some perovskite-derived crystals, whose luminescent, thermochromic, nonlinear optical and dielectric properties provide opportunities for their wide practical application. This work presents the results of an investigation of the electronic structure and the orbital nature of crystals with the A(2)MX(6) formula (where A = Rb, Cs, HGu; M = Te, Sb; X= Cl, Br, I). The electronic structure of crystals with Te and Sb atoms was determined by the method of X-ray photoelectron spectroscopy and quantum-chemical modeling within the framework of the density functional theory.