| Controlled hydrothermal growth and tunable luminescence properties of beta-NaYF4:Yb3+/Er3+ microcrystals | |
| Department | 固体润滑国家重点实验室 |
| Wang, Chuanying1; Cheng XH(程先华)1,2; Cheng XH(程先华) | |
| 2014 | |
| Source Publication | Journal of Alloys and Compounds
 |
| ISSN | 0925-8388 |
| Volume | 617Pages:807-815 |
| Abstract | 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. |
| Keyword | Beta-nayf4:Yb/er Crystals Morphology Size Upconversion Luminescence |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.jallcom.2014.08.101 |
| Funding Organization | the National Science Foundation of China (Grant No. 51175330) |
| Indexed By | SCI |
| If | 2.999 |
| Language | 英语 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/19262 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Cheng XH(程先华) |
| Affiliation | 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 |
| Recommended Citation GB/T 7714 | Wang, Chuanying,Cheng XH,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,&程先华.(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. |
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| File Name/Size | DocType | Version | Access | License | ||
| 1-s2.0-S092583881401（2140KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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