{"title":"紫外线辐照下 YAlO3:Bi 包晶的热刺激发光","authors":"","doi":"10.1016/j.jlumin.2024.120875","DOIUrl":null,"url":null,"abstract":"<div><p>The appearance of the ultraviolet Bi<sup>3+</sup>-related emission band in the thermally stimulated luminescence (TSL) spectrum is observed around 465 K after selective irradiation of the YAlO<sub>3</sub>:Bi perovskite in the Bi<sup>3+</sup>-related absorption bands. The excitation spectrum of the TSL glow curve peak at 465 K, activation energies of its creation by photons of different energies, and the dependence of the TSL peak intensity on the irradiation duration are measured. The origin of the optically created electron centers and the mechanisms of photostimulated creation of the electron and hole centers under irradiation in the Bi<sup>3+</sup>-related absorption bands of YAlO<sub>3</sub>:Bi are discussed. The TSL glow curve peak at 465 K is suggested to appear as a result of electrons release from the electron centers intrinsic to the YAlO<sub>3</sub> lattice and their recombination with the hole Bi<sup>4+</sup> centers. The same processes are shown to take place in the X-ray-irradiated YAlO<sub>3</sub>:Bi perovskite. The obtained results are important for possible applications of the investigated material in thermoluminescent dosimetry.</p></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":null,"pages":null},"PeriodicalIF":3.3000,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Thermally stimulated luminescence of UV-irradiated YAlO3:Bi perovskite\",\"authors\":\"\",\"doi\":\"10.1016/j.jlumin.2024.120875\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The appearance of the ultraviolet Bi<sup>3+</sup>-related emission band in the thermally stimulated luminescence (TSL) spectrum is observed around 465 K after selective irradiation of the YAlO<sub>3</sub>:Bi perovskite in the Bi<sup>3+</sup>-related absorption bands. The excitation spectrum of the TSL glow curve peak at 465 K, activation energies of its creation by photons of different energies, and the dependence of the TSL peak intensity on the irradiation duration are measured. The origin of the optically created electron centers and the mechanisms of photostimulated creation of the electron and hole centers under irradiation in the Bi<sup>3+</sup>-related absorption bands of YAlO<sub>3</sub>:Bi are discussed. The TSL glow curve peak at 465 K is suggested to appear as a result of electrons release from the electron centers intrinsic to the YAlO<sub>3</sub> lattice and their recombination with the hole Bi<sup>4+</sup> centers. The same processes are shown to take place in the X-ray-irradiated YAlO<sub>3</sub>:Bi perovskite. The obtained results are important for possible applications of the investigated material in thermoluminescent dosimetry.</p></div>\",\"PeriodicalId\":16159,\"journal\":{\"name\":\"Journal of Luminescence\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2024-09-02\",\"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/S0022231324004393\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022231324004393","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}
Thermally stimulated luminescence of UV-irradiated YAlO3:Bi perovskite
The appearance of the ultraviolet Bi3+-related emission band in the thermally stimulated luminescence (TSL) spectrum is observed around 465 K after selective irradiation of the YAlO3:Bi perovskite in the Bi3+-related absorption bands. The excitation spectrum of the TSL glow curve peak at 465 K, activation energies of its creation by photons of different energies, and the dependence of the TSL peak intensity on the irradiation duration are measured. The origin of the optically created electron centers and the mechanisms of photostimulated creation of the electron and hole centers under irradiation in the Bi3+-related absorption bands of YAlO3:Bi are discussed. The TSL glow curve peak at 465 K is suggested to appear as a result of electrons release from the electron centers intrinsic to the YAlO3 lattice and their recombination with the hole Bi4+ centers. The same processes are shown to take place in the X-ray-irradiated YAlO3:Bi perovskite. The obtained results are important for possible applications of the investigated material in thermoluminescent dosimetry.
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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