X-ray Scintillation in Lead Halide Perovskite Crystals.

ABSTRACT: Current technologies for X-ray detection rely on scintillation from expensive inorganic crystals grown at high-temperature, which so far has hindered the development of large-area scintillator arrays. Thanks to the presence of heavy atoms, solution-grown hybrid lead halide perovskite single crystals exhibit short X-ray absorption length and excellent detection efficiency. Here we compare X-ray scintillator characteristics of three-dimensional (3D) MAPbI₃ and MAPbBr₃ and two-dimensional (2D) (EDBE)PbCl₄ hybrid perovskite crystals. X-ray excited thermoluminescence measurements indicate the absence of deep traps and a very small density of shallow trap states, which lessens after-glow effects. All perovskite single crystals exhibit high X-ray excited luminesce

SUBMITTER: Birowosuto MD 

PROVIDER: S-EPMC5111063 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature