کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1521867 | 995300 | 2014 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and VUV luminescent properties of LaPO4:Eu3+ nanowires Synthesis and VUV luminescent properties of LaPO4:Eu3+ nanowires](/preview/png/1521867.png)
• 5D0 → 7F2 integrated emission intensity of LaPO4:Eu3+ was higher than 5D0 → 7F1 transition.
• VUV luminescent intensities of LaPO4:Eu3+ nanowires were maintained in a certain value.
• Self-purification phenomenon is observed in LaPO4:Eu3+ nanowires.
A series of different concentrations of LaPO4:Eu3+ phosphors with the morphology of nanowires were successfully prepared by a precipitation method. It was observed that the integrated intensity of 5D0 → 7F2 transition of Eu3+ was higher than its 5D0 → 7F1 transition when the sintering temperature was at 600 °C. The most interesting phenomenon was that the doping concentrations of LaPO4:Eu3+ nanowires were changed in a large range (5–15%), the photoluminescence intensities were maintained in a certain value. This phenomenon was not observed in the bulk LaPO4:Eu3+ phosphors. A detailed explanation to this phenomenon was given.
Journal: Materials Chemistry and Physics - Volume 147, Issue 3, 15 October 2014, Pages 831–835