Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Room-temperature blue luminescence from ZnO : Er thin films | |
其他题名 | 论文其他题名 |
Zhang X. T.; Liu Y. C.; Ma J. G.; Lu Y. M.; Shen D. Z.; Xu W.; Zhong G. Z.; Fan X. W. | |
2002 | |
发表期刊 | Thin Solid Films |
ISSN | 0040-6090 |
卷号 | 413期号:1—2页码:257-261 |
摘要 | In this paper, room-temperature blue cathodoluminescence from ZnO:Er thin films has been studied using different electron beam currents. The ZnO:Er thin films used in our experiment were prepared by simultaneous evaporation from ZnO and Er sources. The X-ray diffraction spectra showed that the thin films had a strong preferential c-axis (0002) orientation with a hexagonal crystalline structure. The blue light emission at 455 nm originating from the intra-4f shell transition (F-4(5/2) --> I-4(15/2)) in Er3+ ions was observed at room temperature. This is because many Er ions in the ground states resonantly absorb the energy from the emission related to deep-level defects and cathode ray, then fill in the H-2(11/2) state, the non-radiative relaxation rates from the F-4(5/2) state to the H-2(11/2) state are completely suppressed. The non-linear dependence of the cathodoluminescence intensity on the electron beam current showed a blue light emission above the threshold electron beam current (I-th) of 0.6 muA, which was attributed to the phonon bottleneck effect. Furthermore, the near infrared luminescence at 1.54 mum was obtained at room temperature. (C) 2002 Elsevier Science B.V. All rights reserved. |
收录类别 | SCI ; EI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/26846 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Zhang X. T.,Liu Y. C.,Ma J. G.,et al. Room-temperature blue luminescence from ZnO : Er thin films[J]. Thin Solid Films,2002,413(1—2):257-261. |
APA | Zhang X. T..,Liu Y. C..,Ma J. G..,Lu Y. M..,Shen D. Z..,...&Fan X. W..(2002).Room-temperature blue luminescence from ZnO : Er thin films.Thin Solid Films,413(1—2),257-261. |
MLA | Zhang X. T.,et al."Room-temperature blue luminescence from ZnO : Er thin films".Thin Solid Films 413.1—2(2002):257-261. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Zhang-2002-Room-temp(128KB) | 开放获取 | -- | 浏览 下载 |
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。
修改评论