IHEP OpenIR  > 多学科研究中心
Long afterglow luminescence mechanism of SrAl2O4-based phosphor by the thermoluminescence and positron annihilation method
其他题名热释发光一正电子湮灭法研究SrAl2O4基磷光体长余辉发光机制
Lin, YH; Nan, CW; Zhang, ZT; Wang, YT; Wang YT(王雨田)
2004
发表期刊JOURNAL OF INORGANIC MATERIALS
卷号19期号:1页码:#REF!
通讯作者Lin, YH (reprint author), Tsing Hua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China.
摘要Long afterglow SrAl2O4:Eu,Dy phosphor was prepared by the traditional ceramic synthesis method, and investigated its luminescent mechanism and properties by the thermoluminescence and positron annihilation method. The results indicate that Eu2+ ions act luminescent centers and Dy3+ ions as trap levels. The positron annihilation experiment reveals that traps with negative charge exist in the Sr0.94Al2O4: Eu-0.02 and Sr0.94Al2O4:Eu-0.02, Dy-0.04, the Dy3+ ions enter the Sr2+ sites, and produce some Sr2+ vacancies simultaneously. The thermoluminescence curves imply that the, depth of trap level is about 0.95eV while doped Eu ions simply, and 0.51eV while co-doped Dy3+ in the SrAl2O4 host. As for the long afterglow luminescence mechanism, the trapped holes released from the trap levels are recombined with electrons accompanying with the luminescence, which result in the long afterglow. Due to the different depths of trap levels, the afterglow properties of phosphors vary greatly.
文章类型Article
关键词thermoluminescence positron annihilation long afterglow trap level
学科领域Materials Science
收录类别SCI
WOS类目Materials Science, Ceramics
WOS记录号WOS:000188667100033
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226900
专题多学科研究中心
推荐引用方式
GB/T 7714
Lin, YH,Nan, CW,Zhang, ZT,et al. Long afterglow luminescence mechanism of SrAl2O4-based phosphor by the thermoluminescence and positron annihilation method[J]. JOURNAL OF INORGANIC MATERIALS,2004,19(1):#REF!.
APA Lin, YH,Nan, CW,Zhang, ZT,Wang, YT,&王雨田.(2004).Long afterglow luminescence mechanism of SrAl2O4-based phosphor by the thermoluminescence and positron annihilation method.JOURNAL OF INORGANIC MATERIALS,19(1),#REF!.
MLA Lin, YH,et al."Long afterglow luminescence mechanism of SrAl2O4-based phosphor by the thermoluminescence and positron annihilation method".JOURNAL OF INORGANIC MATERIALS 19.1(2004):#REF!.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
2183.pdf(235KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Lin, YH]的文章
[Nan, CW]的文章
[Zhang, ZT]的文章
百度学术
百度学术中相似的文章
[Lin, YH]的文章
[Nan, CW]的文章
[Zhang, ZT]的文章
必应学术
必应学术中相似的文章
[Lin, YH]的文章
[Nan, CW]的文章
[Zhang, ZT]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。