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Scintillation properties of Mn-doped methylammonium lead chloride crystals
Organic–inorganic perovskite materials with a bulk structure MAPbX 3 (MA: methylamine, X: halogen) have attracted much attention in various applications such as solar cells, photodiodes, and radiation detectors. Herein, we synthesized (CH 3 NH 3 )Pb 1- x Mn x Cl 3 (or Mn-doped MAPbCl 3 ) crystals by...
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Published in: | Journal of materials science. Materials in electronics 2021-05, Vol.32 (10), p.12903-12910 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Organic–inorganic perovskite materials with a bulk structure MAPbX
3
(MA: methylamine, X: halogen) have attracted much attention in various applications such as solar cells, photodiodes, and radiation detectors. Herein, we synthesized (CH
3
NH
3
)Pb
1-
x
Mn
x
Cl
3
(or Mn-doped MAPbCl
3
) crystals by inverse temperature crystallization method to develop scintillator materials and evaluated their photoluminescence (PL) and scintillation properties systematically. The Mn-doped MAPbCl
3
crystals showed a sharp emission peak at approximately 410–430 nm with short decay times on the order of nanoseconds and a broad peak at approximately 600 nm with a long decay time on the order of milliseconds in PL and scintillation. Furthermore, pulse height spectra of the Mn-doped MAPbCl
3
crystals with a shaping time of 1 µs were measured, and the obtained scintillation light yields were estimated to be 66 (
x
= 1), 82 (
x
= 5), and 67 (
x
= 10) photons/5.5 MeV-α. Moreover, afterglow levels of the Mn-doped MAPbCl
3
crystals were found to be 161 (
x
= 1), 264 (
x
= 5) and 170 (
x
= 10) ppm, which were comparable to a previously reported afterglow level of Tl-doped CsI. |
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ISSN: | 0957-4522 1573-482X |
DOI: | 10.1007/s10854-020-04480-7 |