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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 PublicationNANOSCALE
Volume4Issue:15Pages:4658-4666
AbstractThe 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c2nr30998j
WOS Subject ExtendedChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS KeywordUP-CONVERSION LUMINESCENCE ; NAYF4 NANOCRYSTALS ; OPTICAL-PROPERTIES ; NANOPARTICLES ; SIZE ; ER3+ ; EMISSION ; STATE ; YB3+
Indexed BySCI
Language英语
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000306324000045
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Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10576
Collection中国科学院广州能源研究所
Affiliation1.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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