Improving the moisture resistance and luminescent properties of K2TiF6:Mn4+ by coating with CaF2

doi:10.1016/j.materresbull.2019.03.020

	Improving the moisture resistance and luminescent properties of K2TiF6:Mn4+ by coating with CaF2
	Dong, Qizheng 1,2; Guo, Chengjin 1,2; He, Ling 1,2; Lu, Xuefeng 1,2; Yin, Jianbo 1,2
刊名	MATERIALS RESEARCH BULLETIN
	2019-07
卷号	115 页码:98-104
关键词	Optical materials Chemical synthesis Optical properties Phosphors
ISSN号	0025-5408
DOI	10.1016/j.materresbull.2019.03.020
英文摘要	The moisture resistance and luminescent properties of K2TiF6:Mn4+ (KTF) phosphor was enhanced through a facile coating method to modify its surface, in which CaF2 was used as a coating material. The structure, morphology, and composition of the KTF@CaF2 samples were investigated via power X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), and transmission electron microscope (TEM). The luminescence properties were identified by luminescence spectra. The results show that, after being treated with CaF2, the surface morphology changed to some extent, and the luminous intensity of phosphor was enhanced. Through application of a moisture resistance test, the luminous intensity of KTF@CaF2 phosphor was maintained, whereas the KIT was hydrolysed and the luminous intensity decreased. This was ascribed to local distortion of the crystalline field around Mn4+ in phosphors and the improvement of surface moisture resistance of phosphors after coating with CaF2.
资助项目	National Natural Science Foundation of China[51662026][21301084] ; Key Research and Development Program of Gansu Province[17JR7GA014] ; State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals[18LHPY006]
WOS研究方向	Materials Science
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000468013700012
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31741]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Dong, Qizheng
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Dong, Qizheng,Guo, Chengjin,He, Ling,et al. Improving the moisture resistance and luminescent properties of K2TiF6:Mn4+ by coating with CaF2[J]. MATERIALS RESEARCH BULLETIN,2019,115:98-104.
APA	Dong, Qizheng,Guo, Chengjin,He, Ling,Lu, Xuefeng,&Yin, Jianbo.(2019).Improving the moisture resistance and luminescent properties of K2TiF6:Mn4+ by coating with CaF2.MATERIALS RESEARCH BULLETIN,115,98-104.
MLA	Dong, Qizheng,et al."Improving the moisture resistance and luminescent properties of K2TiF6:Mn4+ by coating with CaF2".MATERIALS RESEARCH BULLETIN 115(2019):98-104.