{"title":"High Stability and Long Afterglow of Green Strontium Aluminates Composed of SrAl2O4:Eu2+ and SrAl12O19:Eu2+ Crystals","authors":"Su-Hua Yang, Chia-Ho Wang, Kai Zhan, C. Ho","doi":"10.1109/ICASI57738.2023.10179510","DOIUrl":null,"url":null,"abstract":"This paper presents the stability and afterglow of strontium aluminates (SAO) consisting of SrAl<inf>2</inf>O<inf>4</inf>:Eu<sup>2+</sup> and SrAl<inf>12</inf>O<inf>19</inf>:Eu<sup>2+</sup>. The maximum energy absorption and emission peaks were at 364 and 517 nm, respectively. Upon increasing the Eu<sup>2+</sup> concentration, the decay time of SAO:Eu<sup>2+</sup> decreased from 46.09 to 13.35 s. When the phosphor was heated to 110°C, the luminescence intensity decreased by only 10%. Furthermore, the SAO:Eu<sup>2+</sup> exhibited high moisture resistance and long rechargeable persistent luminescence, hence, it is a promising material for digital optical data storage applications.","PeriodicalId":281254,"journal":{"name":"2023 9th International Conference on Applied System Innovation (ICASI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2023 9th International Conference on Applied System Innovation (ICASI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICASI57738.2023.10179510","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This paper presents the stability and afterglow of strontium aluminates (SAO) consisting of SrAl2O4:Eu2+ and SrAl12O19:Eu2+. The maximum energy absorption and emission peaks were at 364 and 517 nm, respectively. Upon increasing the Eu2+ concentration, the decay time of SAO:Eu2+ decreased from 46.09 to 13.35 s. When the phosphor was heated to 110°C, the luminescence intensity decreased by only 10%. Furthermore, the SAO:Eu2+ exhibited high moisture resistance and long rechargeable persistent luminescence, hence, it is a promising material for digital optical data storage applications.
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