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|Title:||X-ray Scintillation in Lead Halide Perovskite Crystals||Authors:||Cortecchia, D.
Birowosuto, Muhammad Danang
|Keywords:||Electronic and Spintronic Devices
Sensors and Biosensors
|Issue Date:||2016||Source:||Birowosuto, M. D., Cortecchia, D., Drozdowski, W., Brylew, K., Lachmanski, W., Bruno, A., et al. (2016). X-ray Scintillation in Lead Halide Perovskite Crystals. Scientific Reports, 6, 37254-.||Series/Report no.:||Scientific Reports||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.||URI:||https://hdl.handle.net/10356/83877
|ISSN:||2045-2322||DOI:||10.1038/srep37254||Rights:||© 2016 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||ERI@N Journal Articles|
IGS Journal Articles
SPMS Journal Articles
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