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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Official URL: http://www.springerlink.com/content/a4164043611x74...
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.
|Uncontrolled Keywords:||Core/shell heteronanostructures - Nanophosphors - Photoluminescence - Yttrium vanadate - Yttrium borate|
|Subjects:||Material Science > Functional and hybrid materials|
Material Science > Nanofabrication processes and tools
|Deposited By:||Lesley Tobin|
|Deposited On:||17 Aug 2009 17:00|
|Last Modified:||17 Aug 2009 17:00|
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