Abstract
A novel orange-emitting phosphor, Na0.86CaEu0.14VO4, was prepared by a combustion method. X-ray powder diffraction (XRD) analysis confirmed the formation of NaCaVO4. Photoluminescence (PL) results showed that the phosphor could be efficiently excited by UV-visible light from 350 to 550 nm, exhibiting bright orange emission. The effect of the doped-Eu3+ concentration in NaCaVO4 on the PL was investigated in detail. The result showed that the relative PL intensity decreases with increasing Eu3+-concentration due to concentration quenching. TEM images show that the grain size of Na0.86CaEu0.14VO4 is about 50 nm, which is in full agreement with the theoretical calculation from the XRD patterns.
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Huang, J., Chen, D. Luminescence properties of a new orange-emitting phosphor. Appl. Phys. A 102, 239–243 (2011). https://doi.org/10.1007/s00339-010-5938-z
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DOI: https://doi.org/10.1007/s00339-010-5938-z