Nanosecond and Highly Sensitive Scintillator Based on All-Inorganic Perovskite Single Crystals
The scintillator is a unique class of luminescent materials, which is of great significance in clinical diagnosis, security inspection, and radiation detection. Herein, an all-inorganic Cs4PbI6 single crystals (SCs) as a nanosecond and an efficient X-ray and α particle scintillator is described. The...
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Published in | ACS applied materials & interfaces Vol. 14; no. 1; pp. 1489 - 1495 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
American Chemical Society
12.01.2022
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Subjects | |
Online Access | Get full text |
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Summary: | The scintillator is a unique class of luminescent materials, which is of great significance in clinical diagnosis, security inspection, and radiation detection. Herein, an all-inorganic Cs4PbI6 single crystals (SCs) as a nanosecond and an efficient X-ray and α particle scintillator is described. The radioluminescence (RL) spectrum of Cs4PbI6 SCs under X-ray excitation consists of a band gap emission at 310 nm and a broadband emission at 552 nm at room temperature. Furthermore, Cs4PbI6 SCs demonstrate nanosecond decay times of 0.95 and 6.86 ns, a high sensitivity to low-energy X-ray (30 keV) with a low detection limit (187 nGyair/s), and a favorable linearity detection range, potentially enabling their broad application in X-ray imaging. Under 237Np α particle irradiation, the light yield of Cs4PbI6 SCs is about 49.5% of that of a BGO scintillator with an energy resolution of 35% at 4.78 MeV. Our results demonstrate the potential of Cs4PbI6 SCs as a nanosecond and low-cost scintillator in radiation detection applications. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1944-8244 1944-8252 |
DOI: | 10.1021/acsami.1c21055 |