Frequency characteristic test for the plant of rotator servo system

	Frequency characteristic test for the plant of rotator servo system
	Zhang, M.; T. Chen; H. Li; M. Gong and F. Yang
	2016
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
卷号	45 期号:5
摘要	Luminescence property of low-concentration Eu2+-doped SrAlSi4N7:Ce3+ yellow phosphor is reported in this paper. Three optical centers Ce1, Ce2, and Eu2 are observed in the phosphor. Deconvolution of emission spectrum confirms the three centers to be green (530 nm), yellow (580 nm), and red (630 nm), respectively. This property promises considerable improvement of color-rendering property of a white light-emitting diode (wLED). For example, color-rendering index (CRI) of wLED fabricated by combining a blue LED chip and SrAlSi4N7:0.05Ce(3+),0.01Eu(2+) phosphor reaches 88. A competitive energy transfer process between Ce1Ce2 and Ce1Eu2 is confirmed based on InokutiHirayama formula. Ratio of energy transfer rate between Ce1Ce2 and Ce1Eu2 (WEu2/W-Ce1Ce2) is calculated to be 2.0. This result reveals the effect of Eu2+ concentration on quantity of green and red components in SrAlSi4N7:Ce3+,Eu2+ phosphor.
文章类型	期刊
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57422
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang, M.,T. Chen,H. Li,et al. Frequency characteristic test for the plant of rotator servo system[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2016,45(5).
APA	Zhang, M.,T. Chen,H. Li,&M. Gong and F. Yang.(2016).Frequency characteristic test for the plant of rotator servo system.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,45(5).
MLA	Zhang, M.,et al."Frequency characteristic test for the plant of rotator servo system".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 45.5(2016).

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