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Hydrothermal synthesis of Yb3+, Tm3+ co-doped Gd6MoO12 and its upconversion properties |
Di Qiu-Mei (邸秋梅), Sun Yu-Mei (孙宇梅), Xu Qi-Guang (徐齐光), Han Liu (韩柳), Xue Bing (薛兵), Sun Jia-Yue (孙家跃) |
School of Science, Beijing Technology and Business University, Beijing 100048, China |
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Abstract Yb3+, Tm3+ co-doped Gd6MoO12 phosphors with different morphologies are prepared by the hydrothermal method. The dendrites present different morphologies (including hexagonal prisms, spindles, and spheres) after changing the pH value and edetate disodium (EDTA) usage. It is found that each of the two factors plays a crucial role in forming different morphologies.#br#The up-conversion (UC) luminescence is studied. Under 980-nm semiconductor laser excitation, relatively strong blue emission and weak red emission are observed. Finally, the effect of pumping power on the UC luminescence properties and the level diagram mechanism of Gd6MoO12:Yb3+/Tm3+ phosphor are also discussed.
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Received: 15 December 2014
Revised: 22 January 2015
Accepted manuscript online:
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PACS:
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78.20.-e
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(Optical properties of bulk materials and thin films)
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65.80.-g
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(Thermal properties of small particles, nanocrystals, nanotubes, and other related systems)
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81.05.-t
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(Specific materials: fabrication, treatment, testing, and analysis)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 20976002), the Beijing Natural Science Foundation, China (Grant No. 2122012), the Key Projects for Science and Technology of Beijing Education Commission, China (Grant No. KZ201310011013), and the Education and Research Fund of Guangdong Province, China (Grant No. 2011B090400100). |
Corresponding Authors:
Sun Jia-Yue
E-mail: jiayue_sun@126.com
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About author: 78.20.-e; 65.80.-g; 81.05.-t |
Cite this article:
Di Qiu-Mei (邸秋梅), Sun Yu-Mei (孙宇梅), Xu Qi-Guang (徐齐光), Han Liu (韩柳), Xue Bing (薛兵), Sun Jia-Yue (孙家跃) Hydrothermal synthesis of Yb3+, Tm3+ co-doped Gd6MoO12 and its upconversion properties 2015 Chin. Phys. B 24 067801
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