Room-temperature blue luminescence from ZnO : Er thin films

	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.

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