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Temperature dependent scintillation properties and mechanisms of (PEA)(2)PbBr(4) single crystals
In this work the scintillation properties of PEA(2)PbBr(4) are studied as function of temperature, accessing the potential use of these materials for low temperature applications. The scintillation properties and mechanism have been studied using a combination of temperature dependent photoluminesce...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9386685/ https://www.ncbi.nlm.nih.gov/pubmed/36090966 http://dx.doi.org/10.1039/d2tc01483a |
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author | van Blaaderen, Jacob Jasper Maddalena, Francesco Dang, Cuong Birowosuto, Muhammad Danang Dorenbos, Pieter |
author_facet | van Blaaderen, Jacob Jasper Maddalena, Francesco Dang, Cuong Birowosuto, Muhammad Danang Dorenbos, Pieter |
author_sort | van Blaaderen, Jacob Jasper |
collection | PubMed |
description | In this work the scintillation properties of PEA(2)PbBr(4) are studied as function of temperature, accessing the potential use of these materials for low temperature applications. The scintillation properties and mechanism have been studied using a combination of temperature dependent photoluminescence emission and excitation, X-ray excited emission and decay measurements. At room temperature the X-ray excited emission is dominated by the 442 nm emission with a lifetime of 35.2 ns. Under UV-Vis photon excitation an additional emission peak is observed at 412 nm. At 10 K, both X-ray and UV-Vis photon excited emission spectra show a narrow emission peak at 412 nm and a broad emission band centred around 525 nm with a lifetime of 1.53 ns (24%) and 154 ns (76%) respectively. The exact nature of the observed emission peaks is not known. For this reason two potential mechanisms explaining the difference between UV-Vis photon and X-ray excitation and their temperature dependent emissions are explored. The total spectral intensity decreases to 72% of the intensity at room temperature at 10 K. It is suggested that the observed negative thermal quenching behaviour results from a combination of more self absorption and a higher degree of self trapped exciton formation under X-ray excitation. Based on the observed fast decay component at 10 K and light yield of 9400 photons per MeV at room temperature, showing only a 28% decrease at 10 K, could make this material potentially interesting for low temperature and fast timing applications. |
format | Online Article Text |
id | pubmed-9386685 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-93866852022-09-08 Temperature dependent scintillation properties and mechanisms of (PEA)(2)PbBr(4) single crystals van Blaaderen, Jacob Jasper Maddalena, Francesco Dang, Cuong Birowosuto, Muhammad Danang Dorenbos, Pieter J Mater Chem C Mater Chemistry In this work the scintillation properties of PEA(2)PbBr(4) are studied as function of temperature, accessing the potential use of these materials for low temperature applications. The scintillation properties and mechanism have been studied using a combination of temperature dependent photoluminescence emission and excitation, X-ray excited emission and decay measurements. At room temperature the X-ray excited emission is dominated by the 442 nm emission with a lifetime of 35.2 ns. Under UV-Vis photon excitation an additional emission peak is observed at 412 nm. At 10 K, both X-ray and UV-Vis photon excited emission spectra show a narrow emission peak at 412 nm and a broad emission band centred around 525 nm with a lifetime of 1.53 ns (24%) and 154 ns (76%) respectively. The exact nature of the observed emission peaks is not known. For this reason two potential mechanisms explaining the difference between UV-Vis photon and X-ray excitation and their temperature dependent emissions are explored. The total spectral intensity decreases to 72% of the intensity at room temperature at 10 K. It is suggested that the observed negative thermal quenching behaviour results from a combination of more self absorption and a higher degree of self trapped exciton formation under X-ray excitation. Based on the observed fast decay component at 10 K and light yield of 9400 photons per MeV at room temperature, showing only a 28% decrease at 10 K, could make this material potentially interesting for low temperature and fast timing applications. The Royal Society of Chemistry 2022-07-27 /pmc/articles/PMC9386685/ /pubmed/36090966 http://dx.doi.org/10.1039/d2tc01483a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry van Blaaderen, Jacob Jasper Maddalena, Francesco Dang, Cuong Birowosuto, Muhammad Danang Dorenbos, Pieter Temperature dependent scintillation properties and mechanisms of (PEA)(2)PbBr(4) single crystals |
title | Temperature dependent scintillation properties and mechanisms of (PEA)(2)PbBr(4) single crystals |
title_full | Temperature dependent scintillation properties and mechanisms of (PEA)(2)PbBr(4) single crystals |
title_fullStr | Temperature dependent scintillation properties and mechanisms of (PEA)(2)PbBr(4) single crystals |
title_full_unstemmed | Temperature dependent scintillation properties and mechanisms of (PEA)(2)PbBr(4) single crystals |
title_short | Temperature dependent scintillation properties and mechanisms of (PEA)(2)PbBr(4) single crystals |
title_sort | temperature dependent scintillation properties and mechanisms of (pea)(2)pbbr(4) single crystals |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9386685/ https://www.ncbi.nlm.nih.gov/pubmed/36090966 http://dx.doi.org/10.1039/d2tc01483a |
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