Scintillation properties of organic–inorganic layered perovskite-type compounds with a methylphenethylamine

Abstract

Abstract Photoluminescence and scintillation characteristics of organic–inorganic layered perovskite-type compounds with a methylphenethylamine were evaluated for possible scintillator applications, and crystals of (2-CH3C6H4C2H4NH3)2PbBr4 (2CH3Phe), (3-CH3C6H4C2H4NH3)2PbBr4 (3CH3Phe) and (4-CH3C6H4C2H4NH3)2PbBr4 (4CH3Phe) were fabricated by a temperature gradient method. Emissions at 406 nm for 2CH3Phe, 433 nm for 3CH3Phe and 430 nm for 4CH3Phe were observed under X-ray irradiation. The scintillation light yields were 2700 photons MeV−1 for 2CH3Phe, 8200 photons MeV−1 for 3CH3Phe, 5800 photons MeV−1 for 4CH3Phe, which were lower than that of (C6H5C2H4NH3)2PbBr4. In addition, the scintillation decay times were 6.3 ns for 2CH3Phe, 7.6 ns for 3CH3Phe, 7.3 ns for 4CH3Phe, and they were found to be lower than that of (C6H5C2H4NH3)2PbBr4.