Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Controlled synthesis and tunable luminescence of uniform YPO4 center dot 0.8H(2)O and YPO4 center dot 0.8H(2)O : Tb3+/Eu3+ nanocrystals by a facile approach | |
Zhang L.; Fu L. L.; Yang X. X.; Fu Z. L.; Qi X. D.; Wu Z. J. | |
2014 | |
发表期刊 | Journal of Materials Chemistry C |
ISSN | ISBN/2050-7526 |
卷号 | 2期号:43页码:9149-9158 |
摘要 | Uniform and well-crystallized YPO4 center dot 0.8H(2)O and YPO4 center dot 0.8H(2)O : Tb3+, Eu3+ nanocrystals have been successfully synthesized by a facile hydrothermal method using trisodium citrate (Cit(3-)) as a "shape modifier". X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM) and photoluminescence (PL) spectra were used to characterize the samples. It was found that the pH of the initial solution was responsible for determining the shape of the final products. In addition, the YPO4 center dot 0.8H(2)O samples prepared by Cit(3-)-assisted hydrothermal synthesis exhibited an intense and bright blue emission. Characterized with Fourier transform infrared (FT-IR) spectra and electron paramagnetic resonance (EPR) spectra, the carbon-related impurities induced by trisodium citrate (Cit(3-)) in the hydrothermal process were confirmed and confirmed that the paramagnetic defects relating to the luminescence properties existed in the luminescent YPO4 center dot 0.8H(2)O nanocrystals. More interestingly, the YPO4 center dot 0.8H(2)O : Tb3+, Eu3+ samples could be effectively excited with 380 nm and the luminescence colors of YPO4 center dot 0.8H(2)O : Tb3+, Eu3+ nanocrystals can be easily tuned by changing the concentration of Eu3+ ions due to an efficient energy transfer from Tb3+ to Eu3+. These results revealed that the combination of the defect luminescence and rare earth-doping emission in YPO4 center dot 0.8H(2)O : Tb3+, Eu3+ nanocrystals could result in tunable emission in a large color gamut, which may be potentially applied in fields such as solid state lighting and field emission displays. |
收录类别 | SCI ; EI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/43807 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Zhang L.,Fu L. L.,Yang X. X.,et al. Controlled synthesis and tunable luminescence of uniform YPO4 center dot 0.8H(2)O and YPO4 center dot 0.8H(2)O : Tb3+/Eu3+ nanocrystals by a facile approach[J]. Journal of Materials Chemistry C,2014,2(43):9149-9158. |
APA | Zhang L.,Fu L. L.,Yang X. X.,Fu Z. L.,Qi X. D.,&Wu Z. J..(2014).Controlled synthesis and tunable luminescence of uniform YPO4 center dot 0.8H(2)O and YPO4 center dot 0.8H(2)O : Tb3+/Eu3+ nanocrystals by a facile approach.Journal of Materials Chemistry C,2(43),9149-9158. |
MLA | Zhang L.,et al."Controlled synthesis and tunable luminescence of uniform YPO4 center dot 0.8H(2)O and YPO4 center dot 0.8H(2)O : Tb3+/Eu3+ nanocrystals by a facile approach".Journal of Materials Chemistry C 2.43(2014):9149-9158. |
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