AP0820 Enhancement of Electric Efficiency and Structural Phase Change of CsPbBr3 Caused by Ni2+ Doping

Abstract

This study deals with inorganic perovskite solar cells. Which employs Ni²⁺-CsPbBr₃ as a photon-absorbing layer. In this work, the perovskite layer (Ni⁺²-CsPbBr₃) was prepared using a simple chemical method. The Ni⁺²-CsPbBr₃ samples show spherical and semispherical clusters of particles with homogeneous distribution of nickel nanoparticles on the surface of CsPbBr₃. The crystallite size was estimated by using the Scherrer equation. It is shown that Ni doping causes the phase transition of CsPbBr₃ from orthorhombic to cubic and also helps to maximize the CsPbBr₃ perovskite's crystallinity, which inhibits nonradiative recombination. The Ni⁺²-CsPbBr₃ nanocomposite is a readily produced material, making it suitable for the production of affordable optoelectronic devices.