Synthesis and characterisation of methylammonium lead tri-bromide perovskites thin films by sequential physical vapor deposition

Please read abstract in the article.Eight Supporting Figures: XRD spectra of PbBr2, MABr and MAPbBr3 annealed at different times; XRD diffractograms of MAPbBr3 including the spectrum of 200 nm PbBr:200 nm MABr ratio; XRD spectra for samples containing 200 nm PbBr2:200 nm MABr, 100 nm PbBr2:100 nm MABr and 200 nm PbBr2:100 nm MABr thickness ratios; UV–Vis spectra of MAPbBr3 including 500 nm thick MABr and annealed at different times; UV–Vis spectra of MAPbBr3 for various thicknesses of MABr including 200 nm PbBr2:200 nm MABr ratio; UV–Vis spectra of MAPbBr3 for various thicknesses of MABr synthesized on glass; FWHMcos(Ө) vs. 4sin(Ө) for MAPbBr3 film for different thicknesses of MABr; Micro-strain of MAPbBr3 thin film vs. Thickness of MABr.The University of Pretoria, National Research Foundation-The World Academy of Science (NRF-TWAS) and NRF grant no N01156/115463 of the SARChI.http://www.elsevier.com/locate/physb2021-02-01hj2020ChemistryPhysic