کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1590615 | 1515428 | 2011 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Low-temperature wet chemical precipitation of YVO4:Bi3+,Eu3+ nanophosphors via citrate precursors Low-temperature wet chemical precipitation of YVO4:Bi3+,Eu3+ nanophosphors via citrate precursors](/preview/png/1590615.png)
YVO4:Bi3+,Eu3+ nanophosphors are prepared by low-temperature wet chemical precipitations in the presence of citrate ions. Transparently dispersed YVO4:Bi3+,Eu3+ nanophosphors crystallize from amorphous gel precursors through a gel-sol process. The homogeneity of Bi3+ doping process as well as the photoluminescence property are improved by using the homogeneous Bi3+ solution as a Bi3+ source instead of Bi3+ powder. YVO4:Bi3+,Eu3+ nanophosphor under the irradiation of near-UV light shows peculiar photobleaching behavior through the reduction from V5+ to V4+, but this photobleach is suppressed by subsequent hydrothermal treatment. The authors also discuss the advantage of transparency of YVO4:Bi3+,Eu3+ nanophosphor in terms of wavelength conversion as compared to micron-sized phosphor.
The authors introduce their recent works on synthesis of YVO4:Bi3+,Eu3+ nanophosphors and characterization of their crystallization process, Bi3+ doping process, photostability, and transparency.Figure optionsDownload as PowerPoint slide
Journal: Progress in Crystal Growth and Characterization of Materials - Volume 57, Issue 4, December 2011, Pages 127–136