Monitor local structure variation of Ce3+ activator in YAG:Ce nanophosphor with calcination temperature by nuclear magnetic resonance spectroscopy

doi:10.1016/j.jallcom.2017.08.203

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 磁共振基础研究部

	Monitor local structure variation of Ce3+ activator in YAG:Ce nanophosphor with calcination temperature by nuclear magnetic resonance spectroscopy
	Yu, Ronghai 1; He, Xiaowu 1; Liu, Xiaofang 1; Zhang, Yongzhe 3; Yu, Youxing 1; Wang, Xiumei 2
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2017-12-30
卷号	729 页码:929-935
关键词	Yag:Ce Nanophosphor Nanocrystal Nmr Local Structure Calcination Temperature Photoluminescence
DOI	10.1016/j.jallcom.2017.08.203
文献子类	Article
英文摘要	Understanding the intrinsic relationship between photoluminescence (PL) properties and fine crystal structure is essential for developing excellent cerium doped Y3Al5O12 (YAG:Ce) nanophosphors. Herein, we studied the crystal structure evolution of YAG: Ce nanophosphors with calcination temperature via multiple characterization techniques, and focused on clarifying the local structure of Ce3+ activator by advanced quantitative Al-27 magic angle spinning nuclear magnetic resonance (Al-27 MAS NMR) spectroscopy. The results showed that the crystallinity of the YAG:Ce nanophosphors was improved and the lattice constant monotonously decreased with rising calcination temperature. Especially, as the calcination temperature increased from 830 to 1030 degrees C, more Ce3+ ions entered the first sphere of AlO6 groups and the symmetry of AlO4 species gradually increased in YAG: Ce nanophosphors, which caused the decrease of geometrical distortion surrounding Ce3+ activators. Due to the variations of fine structure, the PL intensity obviously increased with calcination temperature while its position remained constant. When the calcination temperature further increased to 1080 degrees C, CeO2 impurity formed in the nanophosphor, resulting in the increase of the quenching centers. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	YTTRIUM-ALUMINUM-GARNET ; MOLTEN-SALT SYNTHESIS ; SOL-GEL SYNTHESIS ; DOPED YAG ; LUMINESCENCE PROPERTIES ; OPTICAL-PROPERTIES ; SCINTILLATION PROPERTIES ; METAPHOSPHATE GLASSES ; PHOSPHOR PARTICLES ; SINGLE-CRYSTAL
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000413555000114
资助机构	National Natural Science Foundation of China(51171007 ; National Natural Science Foundation of China(51171007 ; 51271009 ; 51271009 ; 61227902) ; 61227902) ; National Natural Science Foundation of China(51171007 ; National Natural Science Foundation of China(51171007 ; 51271009 ; 51271009 ; 61227902) ; 61227902)
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/11531]
专题	武汉物理与数学研究所_磁共振基础研究部
作者单位	1.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan 430071, Hubei, Peoples R China 3.Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
推荐引用方式 GB/T 7714	Yu, Ronghai,He, Xiaowu,Liu, Xiaofang,et al. Monitor local structure variation of Ce3+ activator in YAG:Ce nanophosphor with calcination temperature by nuclear magnetic resonance spectroscopy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,729:929-935.
APA	Yu, Ronghai,He, Xiaowu,Liu, Xiaofang,Zhang, Yongzhe,Yu, Youxing,&Wang, Xiumei.(2017).Monitor local structure variation of Ce3+ activator in YAG:Ce nanophosphor with calcination temperature by nuclear magnetic resonance spectroscopy.JOURNAL OF ALLOYS AND COMPOUNDS,729,929-935.
MLA	Yu, Ronghai,et al."Monitor local structure variation of Ce3+ activator in YAG:Ce nanophosphor with calcination temperature by nuclear magnetic resonance spectroscopy".JOURNAL OF ALLOYS AND COMPOUNDS 729(2017):929-935.