Open AccessCoexistence of cubic and tetragonal phase with colored excitonic emissions in mixed halide Perovskite CH3NH3PbI3-xClx thin film
Author(s) -
A.M.M. Tanveer Karim,
Md. Sazzad Hossain,
M. K. R. Khan
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/13/132016
Subject(s) - tetragonal crystal system , photoluminescence , halide , cathodoluminescence , luminescence , perovskite (structure) , materials science , analytical chemistry (journal) , phase (matter) , ultraviolet , crystallography , absorption (acoustics) , mineralogy , crystal structure , inorganic chemistry , chemistry , optoelectronics , organic chemistry , chromatography , composite material
Synopsis CH 3 NH 3 PbI 3-x Cl x crystalline film composed of cuboids and polyhedral structure was prepared by dipping and withdrawing method at ambient. X-ray diffraction shows the presence of tetragonal and cubic phases having high absorption coefficient of 10 6 m -1 . Photoluminescence study confirms shallow and deep level emissions. Temperature dependent-cathodoluminescence shows a green luminescence at 2.51 eV accompanied by weak red and ultraviolet luminescence at 80 and 300 K.