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Synthesis of YVO4:Eu3+/YBO3 Heteronanostructures with Enhanced Photoluminescence Properties

Zhu, Hongliang and Hu, Haihua and Wang, Zhengkai and Zuo, Diantai (2009) Synthesis of YVO4:Eu3+/YBO3 Heteronanostructures with Enhanced Photoluminescence Properties. Nanoscale Research Letters, 4 (9). pp. 1009-1014.

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Novel YVO4:Eu3+/YBO3 core/shell heteronanostructures with different shell ratios (SRs) were successfully prepared by a facile two-step method. X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy were used to characterize the heteronanostructures. Photoluminescence (PL) study reveals that PL efficiency of the YVO4:Eu3+ nanocrystals (cores) can be improved by the growth of YBO3 nanocoatings onto the cores to form the YVO4:Eu3+/YBO3 core/shell heteronanostructures. Furthermore, shell ratio plays a critical role in their PL efficiency. The heteronanostructures (SR = 1/7) exhibit the highest PL efficiency; its PL intensity of the 5D0–7F2 emission at 620 nm is 27% higher than that of the YVO4:Eu3+ nanocrystals under the same conditions.

Item Type:Article
Uncontrolled Keywords:Core/shell heteronanostructures - Nanophosphors - Photoluminescence - Yttrium vanadate - Yttrium borate
Subjects:Material Science > Functional and hybrid materials
Material Science > Nanofabrication processes and tools
ID Code:6932
Deposited By:Lesley Tobin
Deposited On:17 Aug 2009 17:00
Last Modified:17 Aug 2009 17:00

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