Controlled hydrothermal growth and tunable luminescence properties of beta-NaYF4:Yb3+/Er3+ microcrystals
文献类型：期刊论文
| 作者 | Wang, Chuanying1; Cheng XH(程先华)1,2 |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2014 |
| 卷号 | 617页码:807-815 |
| 关键词 | beta-NaYF4:Yb/Er crystals Morphology Size Upconversion luminescence |
| ISSN号 | 0925-8388 |
| 通讯作者 | 程先华 |
| 英文摘要 | Using a facile hydrothermal method, hexagonal β-NaYF4:Yb3+ 20 mol%, Er3+ 1 mol% crystals with predictable size and morphology were synthesized and the upconversion (UC) luminescence properties were investigated. X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectra were used to characterize the samples. The results indicated that the size and morphology of the crystals can be precisely controlled by tuning the pH values of the initial reaction solution and the molar ratio of NaNO3 to RE3+ (RE = Y + Yb + Er), and the mechanism was proposed. The UC luminescence properties of β-NaYF4:Yb3+/Er3+ crystals were found to strongly depend on the crystal morphologies and sizes. The peak area ratio of green to red (R/G) increased from 0.29 to 1.03 with pH values increasing from 3 to 10, and increased from 1.03 to 1.26 with the increase of molar ratio of NaNO3 to RE3+ from 0 to 90. The emission colors were tuned from pure green to orange yellow. This study provides a facile way to synthesize β-NaYF4:Yb3+/Er3+ crystals with predictable morphology and size, and tunable luminescence properties, which can be applicable for other rare earth fluoride compounds. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Science Foundation of China (Grant No. 51175330) |
| 语种 | 英语 |
| WOS记录号 | WOS:000344135800131 |
| 源URL | [http://210.77.64.217/handle/362003/19262]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chuanying,Cheng XH. Controlled hydrothermal growth and tunable luminescence properties of beta-NaYF4:Yb3+/Er3+ microcrystals[J]. Journal of Alloys and Compounds,2014,617:807-815. |
| APA | Wang, Chuanying,&Cheng XH.(2014).Controlled hydrothermal growth and tunable luminescence properties of beta-NaYF4:Yb3+/Er3+ microcrystals.Journal of Alloys and Compounds,617,807-815. |
| MLA | Wang, Chuanying,et al."Controlled hydrothermal growth and tunable luminescence properties of beta-NaYF4:Yb3+/Er3+ microcrystals".Journal of Alloys and Compounds 617(2014):807-815. |
入库方式： OAI收割
来源：兰州化学物理研究所
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