Synthesis, Ambient storage stability and optoelectronics properties of Mn-doped CsPbBr3 perovskite crystals

Abstract

Despite excellent optoelectronic properties of CsPbBr3, high yield production of CsPbBr3 and stability in ambient condition are key challenges requiring significant attention. Herein, synthesis of stable CsPbBr3 crystals is demonstrated with high yield possibility in ambient condition. Incorporation of Mn dopant into CsPbBr3 crystal are also demonstrated and effect of doping on structural, optical, and optoelectronic properties are investigated. The addition of Mn dopant (0.3–1.7 At.%) resulted in reduction of size from ~ 8 to ~ 4.5 µm along with increased band gap from ~ 2.25 to 2.31 eV. The addition of Mn dopant also results blue shift in Raman peaks and photoluminescence peak in comparison to undoped CsPbBr3 crystals. The undoped and Mn-doped both CsPbBr3 crystals have shown stable structural, morphological and optical properties for more than a year under ambient condition storage. Mn-doped CsPbBr3 crystals renders better stability of electrical and optoelectrical properties when stored in ambient conditions for a year. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.