Haijie Guo, Wenbo Chen, Wei Zeng, Yuhua Wang, Yanyan Li
{"title":"A Long-Lasting Phosphor Ba3P4O13: Eu2+","authors":"Haijie Guo, Wenbo Chen, Wei Zeng, Yuhua Wang, Yanyan Li","doi":"10.1149/2.0051501SSL","DOIUrl":null,"url":null,"abstract":"A new long-lasting phosphor Ba3P4O13: Eu2+ has been synthesized through the high temperature solid-state method. The excitation spectrum of Ba2.99P4O13: 0.01Eu(2+) is a broadband from 200 to 450 nm attributed to the 4f(7)-> 4f(6)5d(1) transition of Eu2+ ions. The emission spectrum of Ba2.99P4O13: 0.01Eu(2+) exhibits an asymmetric emission band ascribed to the 4f(7)-> 4f(6)5d(1) transition of Eu2+ ions in two different sites. Under the optimum doping concentration, the long-lasting phosphorescence (LLP) can persist for nearly 85 min at recognizable intensity level (>= 0.32 mcd/m(2)). The mechanism of afterglow is discussed briefly. (C) 2014 The Electrochemical Society. All rights reserved.","PeriodicalId":11423,"journal":{"name":"ECS Solid State Letters","volume":"4 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2014-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ECS Solid State Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1149/2.0051501SSL","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11
Abstract
A new long-lasting phosphor Ba3P4O13: Eu2+ has been synthesized through the high temperature solid-state method. The excitation spectrum of Ba2.99P4O13: 0.01Eu(2+) is a broadband from 200 to 450 nm attributed to the 4f(7)-> 4f(6)5d(1) transition of Eu2+ ions. The emission spectrum of Ba2.99P4O13: 0.01Eu(2+) exhibits an asymmetric emission band ascribed to the 4f(7)-> 4f(6)5d(1) transition of Eu2+ ions in two different sites. Under the optimum doping concentration, the long-lasting phosphorescence (LLP) can persist for nearly 85 min at recognizable intensity level (>= 0.32 mcd/m(2)). The mechanism of afterglow is discussed briefly. (C) 2014 The Electrochemical Society. All rights reserved.
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