{"title":"Photoluminescence, scintillation, and thermoluminescence properties of undoped and Tb-doped CaSiO3 single crystals","authors":"Airo Fujii, Keiichiro Miyazaki, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, Takayuki Yanagida","doi":"10.1016/j.jlumin.2025.121141","DOIUrl":null,"url":null,"abstract":"<div><div>Undoped and Tb-doped CaSiO<sub>3</sub> single crystals were synthesized by the floating zone method, and the photoluminescence (PL), scintillation, and thermoluminescence (TL) properties were investigated. In PL, scintillation, and TL spectra, all the Tb-doped samples showed emission peaks due to 4f–4f transitions of Tb<sup>3+</sup>. Further, TL glow peaks of all the Tb-doped samples were observed at 65, 115, 170, 220, and 340 °C. The 0.3% Tb-doped sample showed the highest intensity among all the Tb-doped samples and good linearity in the range of 1–1000 mGy. Furthermore, the TL fading rate of the 0.3% Tb-doped sample was estimated to be ∼50 % at 72 h.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"281 ","pages":"Article 121141"},"PeriodicalIF":3.3000,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S002223132500081X","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
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Abstract
Undoped and Tb-doped CaSiO3 single crystals were synthesized by the floating zone method, and the photoluminescence (PL), scintillation, and thermoluminescence (TL) properties were investigated. In PL, scintillation, and TL spectra, all the Tb-doped samples showed emission peaks due to 4f–4f transitions of Tb3+. Further, TL glow peaks of all the Tb-doped samples were observed at 65, 115, 170, 220, and 340 °C. The 0.3% Tb-doped sample showed the highest intensity among all the Tb-doped samples and good linearity in the range of 1–1000 mGy. Furthermore, the TL fading rate of the 0.3% Tb-doped sample was estimated to be ∼50 % at 72 h.
期刊介绍：
The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid.
We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.
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