Oxidation suppression of Cu in alkaline aluminophosphate glass and the effects for radiation-induced luminescence characteristics
Abstract A glass phosphor is an attractive material for applications in radiation detections because of its high workability and availability with a wide range of chemical compositions. Recently, X-ray-induced luminescence of glasses containing various luminescent activators are actively investigate...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2020-12-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-020-78510-z |
| _version_ | 1818749485479624704 |
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| author | Daiki Shiratori Hirokazu Masai Takumi Kato Go Okada Daisuke Nakauchi Noriaki Kawaguchi Takayuki Yanagida |
| author_facet | Daiki Shiratori Hirokazu Masai Takumi Kato Go Okada Daisuke Nakauchi Noriaki Kawaguchi Takayuki Yanagida |
| author_sort | Daiki Shiratori |
| collection | DOAJ |
| description | Abstract A glass phosphor is an attractive material for applications in radiation detections because of its high workability and availability with a wide range of chemical compositions. Recently, X-ray-induced luminescence of glasses containing various luminescent activators are actively investigated worldwide. In applications as phosphor, tailoring valence state of activators, which can take multiple valence states in glass, is very important. In this research, we studied effects of glass melting atmosphere on the valence state of copper-activator ion in alkaline aluminophosphate glasses and the radiation-induced luminescence characteristics. Optical absorption and X-ray absorption near edge structure spectra of Cu-doped glasses showed that the glass fused in Ar atmosphere contains higher concentration of Cu+ than those prepared in air. In addition, the presence of Cu+ enhances the photoluminescence (PL) quantum yield and PL kinetic constant. Furthermore, the increase of Cu+ concentration resulted an improvement of the X-ray-induced scintillation and thermally-stimulated luminescence intensity. |
| first_indexed | 2024-12-18T04:04:32Z |
| format | Article |
| id | doaj.art-bd04eac51101412a82924a0b9a40743a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-18T04:04:32Z |
| publishDate | 2020-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-bd04eac51101412a82924a0b9a40743a2022-12-21T21:21:36ZengNature PortfolioScientific Reports2045-23222020-12-0110111210.1038/s41598-020-78510-zOxidation suppression of Cu in alkaline aluminophosphate glass and the effects for radiation-induced luminescence characteristicsDaiki Shiratori0Hirokazu Masai1Takumi Kato2Go Okada3Daisuke Nakauchi4Noriaki Kawaguchi5Takayuki Yanagida6Nara Institute of Science and TechnologyNational Institute of Advanced Industrial Science and TechnologyNara Institute of Science and TechnologyKanazawa Institute of TechnologyNara Institute of Science and TechnologyNara Institute of Science and TechnologyNara Institute of Science and TechnologyAbstract A glass phosphor is an attractive material for applications in radiation detections because of its high workability and availability with a wide range of chemical compositions. Recently, X-ray-induced luminescence of glasses containing various luminescent activators are actively investigated worldwide. In applications as phosphor, tailoring valence state of activators, which can take multiple valence states in glass, is very important. In this research, we studied effects of glass melting atmosphere on the valence state of copper-activator ion in alkaline aluminophosphate glasses and the radiation-induced luminescence characteristics. Optical absorption and X-ray absorption near edge structure spectra of Cu-doped glasses showed that the glass fused in Ar atmosphere contains higher concentration of Cu+ than those prepared in air. In addition, the presence of Cu+ enhances the photoluminescence (PL) quantum yield and PL kinetic constant. Furthermore, the increase of Cu+ concentration resulted an improvement of the X-ray-induced scintillation and thermally-stimulated luminescence intensity.https://doi.org/10.1038/s41598-020-78510-z |
| spellingShingle | Daiki Shiratori Hirokazu Masai Takumi Kato Go Okada Daisuke Nakauchi Noriaki Kawaguchi Takayuki Yanagida Oxidation suppression of Cu in alkaline aluminophosphate glass and the effects for radiation-induced luminescence characteristics Scientific Reports |
| title | Oxidation suppression of Cu in alkaline aluminophosphate glass and the effects for radiation-induced luminescence characteristics |
| title_full | Oxidation suppression of Cu in alkaline aluminophosphate glass and the effects for radiation-induced luminescence characteristics |
| title_fullStr | Oxidation suppression of Cu in alkaline aluminophosphate glass and the effects for radiation-induced luminescence characteristics |
| title_full_unstemmed | Oxidation suppression of Cu in alkaline aluminophosphate glass and the effects for radiation-induced luminescence characteristics |
| title_short | Oxidation suppression of Cu in alkaline aluminophosphate glass and the effects for radiation-induced luminescence characteristics |
| title_sort | oxidation suppression of cu in alkaline aluminophosphate glass and the effects for radiation induced luminescence characteristics |
| url | https://doi.org/10.1038/s41598-020-78510-z |
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