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X-ray Scintillation in Lead Halide Perovskite Crystals

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dc.contributor.author Birowosuto, M.D.
dc.contributor.author Cortecchia, D.
dc.contributor.author Drozdowski, Winicjusz
dc.contributor.author Brylew, Kamil
dc.contributor.author Łachmański, W.
dc.contributor.author Bruno, A.
dc.contributor.author Soci, C.
dc.date.accessioned 2017-02-15T12:58:20Z
dc.date.available 2017-02-15T12:58:20Z
dc.date.issued 2016-11-16
dc.identifier.citation Scientific Reports 6, 2016, 37254/1-10
dc.identifier.issn 2045-2322
dc.identifier.other | DOI: 10.1038/srep3725
dc.identifier.uri http://repozytorium.umk.pl/handle/item/4065
dc.description.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 luminescence yields of >120,000 photons/MeV at low temperature. Although thermal quenching is significant at room temperature, the large exciton binding energy of 2D (EDBE)PbCl4 significantly reduces thermal effects compared to 3D perovskites, and moderate light yield of 9,000 photons/MeV can be achieved even at room temperature. This highlights the potential of 2D metal halide perovskites for large-area and low-cost scintillator devices for medical, security and scientific applications.
dc.language.iso eng
dc.publisher Nature Research
dc.rights info:eu-repo/semantics/openAccess
dc.subject electronic and spintronic devices
dc.subject sensors and biosensors
dc.subject X-rays
dc.title X-ray Scintillation in Lead Halide Perovskite Crystals
dc.type info:eu-repo/semantics/article


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