Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Morphology and phase control of fluorides nanocrystals activated by lanthanides with two-model luminescence properties | |
| Dong, Guoping1,2; Chen, Binbin1,2; Xiao, Xiudi3; Chai, Guanqi1,2; Liang, Qiming1,2; Peng, Mingying1,2; Qiu, Jianrong1,2 | |
| 2012 | |
| Source Publication | NANOSCALE
 |
| Volume | 4Issue:15Pages:4658-4666 |
| Abstract | The morphology, size and phase control of luminescent fluoride nanocrystals through doping has become a new research hotspot due to their improved properties. In this work, Yb3+ ions, as one of the most efficient sensitizers for various lanthanide activators, were doped in NaGd(Y)F-4 nanocrystals. The results show that no obvious influence was observed for Yb3+-doped NaYF4 nanocrystals, while the influence of Yb3+ doping on NaGdF4 nanocrystals was remarkable. The NaGd1-xYbxF4 nanocrystals were synthesized by a hydrothermal route and had a morphology of rice-like nanorods. By controlling the synthesis parameters, the average size and slenderness of the nanocrystals increased gradually with addition of Yb3+ ions. In contrast, the NaGd1-xYbxF4 nanocrystals maintained a hexagonal phase, which is more beneficial for application as a luminescent host, until the content of Yb3+ ions reached x = 0.9. The growth and transformation mechanism of NaGd1-xYbxF4 nanocrystals was proposed to be a result of the competition between ion diffusion and an Oswald ripening process. Photoluminescence (PL) spectra confirm the efficient up-conversion and near-infrared (NIR) two-model luminescence properties of Er3+ (Tm3+) activated NaGd(Y)(1-x)YbxF4 nanocrystals. Simulated analysis results indicate that a colloidal solution of mixed luminescent nanocrystals is expected to find application as the activated medium of three dimensional displays and a broadband optical amplifier. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1039/c2nr30998j |
| WOS Subject Extended | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Keyword | UP-CONVERSION LUMINESCENCE ; NAYF4 NANOCRYSTALS ; OPTICAL-PROPERTIES ; NANOPARTICLES ; SIZE ; ER3+ ; EMISSION ; STATE ; YB3+ |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000306324000045 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/10576 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China 2.S China Univ Technol, Inst Opt Commun Mat, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Dong, Guoping,Chen, Binbin,Xiao, Xiudi,et al. Morphology and phase control of fluorides nanocrystals activated by lanthanides with two-model luminescence properties[J]. NANOSCALE,2012,4(15):4658-4666. |
| APA | Dong, Guoping.,Chen, Binbin.,Xiao, Xiudi.,Chai, Guanqi.,Liang, Qiming.,...&Qiu, Jianrong.(2012).Morphology and phase control of fluorides nanocrystals activated by lanthanides with two-model luminescence properties.NANOSCALE,4(15),4658-4666. |
| MLA | Dong, Guoping,et al."Morphology and phase control of fluorides nanocrystals activated by lanthanides with two-model luminescence properties".NANOSCALE 4.15(2012):4658-4666. |
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