Effect of Temperature on Mn2+ Doped Lipbx3 (X = Cl, Br, I): Synthesis and Characterization
DOI:
https://doi.org/10.63278/10.63278/mme.v31.1Keywords:
perovskites.Abstract
In this current paper, the molar feed ratio of MnCl2 to PbBr2 is 1.35 M%. Lead halide perovskite is synthesized by the wet chemical method. The structure of LiPb(Cl/Br)3 doped with Mn2+ nanocrystal was confirmed by TEM analysis and XRD with JCPDS#73-0692. All the diffraction peaks slightly shifted towards the lower angle, this may be due to cell size increases after the Br ion is included in the LiPb(Cl/Br)3 nanocrystal. The cause of the dual color emission of the LiPb(Cl/Br)3 doped with Mn2+ nanocrystal when excited with a 365 nm UV lamp is a transfer of energy levels between the 4T1 and 6A1 of the Mn2+ 3d state (d-d) transition. With increasing the temperature of synthesis under 365 nm UV excitation, a red shift is observed from 598 nm to 605 nm.
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