| 紫外线激发后KCl:Cu+的光激励发光 |
| |
| 引用本文： | 孙力,王永生,赵谡玲,徐征,薛炜炜.紫外线激发后KCl:Cu+的光激励发光[J].光谱学与光谱分析,2005,25(10):1733-1735. |
| |
| 作者姓名： | 孙力 王永生 赵谡玲 徐征 薛炜炜 |
| |
| 作者单位： | 1. 北京交通大学光电子技术研究所,信息存储、显示与材料部级开放实验室,北京,100044
2. 北京交通大学光电子技术研究所,信息存储、显示与材料部级开放实验室,北京,100044;天津大学博士后流动站,天津经济技术开发区博士后工作站,天津中环三津有限公司分站,天津,300457 |
| |
| 基金项目： | 国家自然科学基金（19874001）,北京交通大学论文基金资助项目 |
| |
| 摘 要： | 用固相反应法制备了KCl：Cu^＋多晶样品。经紫外光辐照后，用560nm的光照射能产生近紫外蓝光的光激励发光。研究表明，Cu^＋作为发光中心，经紫外光辐照后并没有产生Cu^＋到Cu^＋的变价，即Cu^＋不是空穴俘获中心，而阴离子空位充当电子陷阱。当激发后的样品受到光激励时，电子与空穴中心或Vk心复合后将能量传递给Cu^＋离子，产生d-s跃迁的特征发射。
|
| 关 键 词： | 光激励发光 KCl Cu^＋ 电子俘获 |
| 文章编号： | 1000-0593（2005）10-1733-03 |
| 收稿时间： | 2004-03-06 |
| 修稿时间： | 2005-01-08 |
Photostimulated Luminescence Properties of KCl:Cu+ after UV Excitation |
| |
| SUN Li,WANG Yong-sheng,ZHAO Su-ling,XU Zheng,XUE Wei-wei.Photostimulated Luminescence Properties of KCl:Cu+ after UV Excitation[J].Spectroscopy and Spectral Analysis,2005,25(10):1733-1735. |
| |
| Authors: | SUN Li WANG Yong-sheng ZHAO Su-ling XU Zheng XUE Wei-wei |
| |
| Institution: | 1. Institute of 0ptoelectronic Technology, Key Lab of Materials for Information Storage and Display, Beijing Jiaotong University, Beijing 100044, China; 2. Tianjin University Postdoctoral Working station, Economy and Technological Development Area Postdoctoral Working Station Tianjin Zhong-Huan San-Jin Ltd, Tianjin 300457, China |
| |
| Abstract: | KCl:Cu~+ powder sample was prepared with high temperature solid reaction process.After being excited by UV,the sample shows near ultraviolet blue luminescence by stimulation with 560 nm light.The research result indicates that Cu~+ acts as(a luminous) center,and Cu~+ does not change into Cu~(2+) by UV irradiation.So,Cu~+ ions do not act as(hole) traps,while anion vacancies act as(electron) traps.Once UV excited sample is stimulated,electrons from F center combine with hole trapping center or V_K center,and cause subsequent energy transfer to Cu~+ ion.Then,a character emission attributed to d-s transition of Cu~+ in lattice occurs. |
| |
| Keywords: | Photostimulated luminescence KCl Cu~+ Electron trapping materials |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
