Novel luminescent properties and thermal stability of non-rare-earth Ca-alpha-sialon:Mn2+ phosphor

doi:10.1016/j.jlumin.2018.05.042

	Novel luminescent properties and thermal stability of non-rare-earth Ca-alpha-sialon:Mn2+ phosphor
	Ni, Jia 1,4; Liu, Qian 1; Wan, Jieqiong 1,4; Liu, Guanghui 1; Zhou, Zhenzhen 1,4; Xu, Fangfang ; Zeng, Xionghui 2; Xie, Rong-Jun
刊名	JOURNAL OF LUMINESCENCE
	2018
卷号	202 页码:514
关键词	Ca-alpha-sialon:Mn2+ phosphor Band gap energy Spectroscopy property Thermal stability Internal quantum efficiency
ISSN号	0022-2313
DOI	10.1016/j.jlumin.2018.05.042
英文摘要	Recently, transition metal Mn2+ ions emerged as a potent competitor of generally used rare-earth elements due to its abundant reserve and cheaper cost. In this work, the transition metal Mn2+ doped Ca-a-sialon phosphor with compositions of Ca1-xSi9Al3ON15:xMn(2+) was designed and successfully prepared by high-temperature solid-state method. The produced Mn2+ doped Ca-a-sialon phosphor exhibits a dominant orange-red emission centered at similar to 600 nm upon UV light excitation of 265 nm, which is ascribed to the characteristic (4)T1((4)G)-Al-6(S-6)transition of Mn2+. The band gap energy (5.61 eV) of the phosphors was calculated based on UV-vis diffuse reflectance spectra. Spectroscopy of temperature-dependent emission demonstrates that the luminescence of the optimized Ca-alpha-sialon: 0.12Mn(2+) composition exhibits a good color stability against heat and excellent resistance to thermal impact, due to its high activation energy of 0.284 eV. Further, the Electron Paramagnetic Resonance (EPR) spectra were recorded to elucidate the structural characteristic of Mn2+ and possible vacancy defects in phosphors. The internal quantum efficiency of the prepared product reaches up to similar to 48.2%. All the results inform that this kind of phosphors may become a promising candidate as orange-red phosphor for W-LED application.
学科主题	Optics
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000437005000068
资助机构	Many thanks for the financial supports from the National Key Research and Development Program of China (Grant No. 2016YFB0700204 and 2016YFB0701004), National Natural Science Foundation of China (Grant No. 51272270), and the Research Program of Shanghai Sciences and Technology Commission Foundation (Grant Nos. 14DZ2261203, 14DZ2292900). ; Many thanks for the financial supports from the National Key Research and Development Program of China (Grant No. 2016YFB0700204 and 2016YFB0701004), National Natural Science Foundation of China (Grant No. 51272270), and the Research Program of Shanghai Sciences and Technology Commission Foundation (Grant Nos. 14DZ2261203, 14DZ2292900).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24665]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Shanghai Inst Mat Genome, 99 Shangda Rd, Shanghai 200444, Peoples R China 3.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Electron Microscope Lab, Suzhou 215123, Peoples R China 4.NIMS, Sialon Grp, Tsukuba, Ibaraki 3050044, Japan 5.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ni, Jia,Liu, Qian,Wan, Jieqiong,et al. Novel luminescent properties and thermal stability of non-rare-earth Ca-alpha-sialon:Mn2+ phosphor[J]. JOURNAL OF LUMINESCENCE,2018,202:514, 522.
APA	Ni, Jia.,Liu, Qian.,Wan, Jieqiong.,Liu, Guanghui.,Zhou, Zhenzhen.,...&Xie, Rong-Jun.(2018).Novel luminescent properties and thermal stability of non-rare-earth Ca-alpha-sialon:Mn2+ phosphor.JOURNAL OF LUMINESCENCE,202,514.
MLA	Ni, Jia,et al."Novel luminescent properties and thermal stability of non-rare-earth Ca-alpha-sialon:Mn2+ phosphor".JOURNAL OF LUMINESCENCE 202(2018):514.