Monitor local structure variation of Ce3+ activator in YAG:Ce nanophosphor with calcination temperature by nuclear magnetic resonance spectroscopy
文献类型：期刊论文
| 作者 | Yu, Ronghai1; He, Xiaowu1; Liu, Xiaofang1; Zhang, Yongzhe3; Yu, Youxing1; Wang, Xiumei2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 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) |
| 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. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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