Temperature dependent scintillation properties and mechanisms of (PEA)₂PbBr₄ single crystals.

ABSTRACT: In this work the scintillation properties of PEA₂PbBr₄ are studied as function of temperature, accessing the potential use of these materials for low temperature applications. The scintillation properties and mechanism have been studied using a combination of temperature dependent photoluminescence emission and excitation, X-ray excited emission and decay measurements. At room temperature the X-ray excited emission is dominated by the 442 nm emission with a lifetime of 35.2 ns. Under UV-Vis photon excitation an additional emission peak is observed at 412 nm. At 10 K, both X-ray and UV-Vis photon excited emission spectra show a narrow emission peak at 412 nm and a broad emission band centred around 525 nm with a lifetime of 1.53 ns (24%) and 154 ns (76%) respectively.

SUBMITTER: van Blaaderen JJ 

PROVIDER: S-EPMC9386685 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature