红色长余辉发光材料纳米硫氧化钇的热处理研究  

Study on Heat Treatment of Nanocrystalline Yttrium Oxide Sulfide Red Long Afterglow Phosphor

作　　者：刘晓霞[1] 李向果[2,3] 彭桂花[2] 梁振华[2] 

机构地区：[1]江汉大学文理学院,湖北武汉430056 [2]广西师范大学,广西桂林541004 [3]河南质量工程职业学院,河南平顶山467000

出　　处：《化学与生物工程》2012年第4期34-36,共3页Chemistry & Bioengineering

基　　金：武汉市教育局2010年市属高校科研课题(2010152)

摘　　要：对燃烧法合成的红色长余辉发光材料纳米Y2O2S:Eu3+,Mg2+,Ti 4+进行了热处理,采用X-射线粉末衍射仪(XRD)、扫描电镜(SEM)、荧光光谱仪(PL)、亮度计等对发光材料进行了表征。结果表明,最佳热处理温度为800℃;热处理后的发光材料的主要物相仍为Y2O2S、粒径略有增大、宽带吸收峰略有红移、发射峰位置不变、初始亮度提高、衰减变慢。Heat treatment of nanocrystalline Y2O2S：Eu3＋,Mg2＋,Ti4＋ red long afterglow phosphor synthesized by combustion method was carried out in the article.The phosphor was characterized by XRD,SEM,PL and luminance meter.The results showed that the optimum heat treatment temperature was 800 ℃.After heat treatment,the main phase of phosphor was Y2O2S,the particle size increased slightly,the broadband absorption peak had a slight red-shift,the emission peak didn′t change in position,the initial brightness increased and declined slowly.

关 键 词：长余辉 热处理 硫氧化钇(Y2O2S) 

分 类 号：O482.31[理学—固体物理]