کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1524550 | 1511832 | 2011 | 6 صفحه PDF | دانلود رایگان |

Eu3+, Dy3+ and Sm3+ doped nano-sized YP0.8V0.2O4 phosphors were synthesized by a simple and facile microwave assisted hydrothermal process. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), photoluminescence (PL) spectra as well as kinetic decay were used to characterize the samples. Under ultraviolet excitation, the YP0.8V0.2O4:Ln3+ showed the VO43− self-emission band at approximately 452 nm and the characteristic emission of doped lanthanide ions (Ln3+). The VO43− self-emission band decreases when the concentration of lanthanide ion increases, because lanthanide ions acts as activator and receives an efficient energy transfer from VO43−. Through changing the kinds and concentrations of doped Ln3+, the emission colors of the nanophosphor can be tuned in a wide region on CIE color coordinates, making the material have potential application in biolabels.
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► Eu3+, Dy3+ and Sm3+ doped nano-sized YP0.8V0.2O4 phosphors were synthesized by a simple and facile microwave assisted hydrothermal process.
► Multicolor emissions can be obtained in YP0.8V0.2O4 host lattice by simply changing the kinds and concentrations of the doping rare earth ions.
Journal: Materials Chemistry and Physics - Volume 129, Issues 1–2, 15 September 2011, Pages 418–423