کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1785813 | 1023395 | 2016 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Optical characteristics of the rare-earth-ions-doped calcium chlorapatite phosphors prepared by using the solid–state reaction method Optical characteristics of the rare-earth-ions-doped calcium chlorapatite phosphors prepared by using the solid–state reaction method](/preview/png/1785813.png)
• Eu3+- and Sm3+-doped apatites are synthesized by using the solid–state reaction method.
• Optical properties are characterized by measuring the absorption, excitation, and emission spectra at room temperature.
• Strong red-orange emissions near ultra-violet excitation are observed in both apatites.
Rare-earth-ions-doped apatite-based phosphors for near ultra-violet excitation have been studied. Ca5(PO4)3Cl:Eu3+ and Ca5(PO4)3Cl:Sm3+ phosphors are synthesized by using the solid–state reaction method sintering at 1100 °C and 1300 °C, respectively. Optical properties of these phosphors are characterized by measuring the absorption, excitation, and emission spectra at room temperature. Strong red-orange emissions corresponding to the 5D0 → 7F0 transition of Eu3+ and the 4G5/2 → 6H7/2 transition of Sm3+ from the near ultra-violet excitation are observed. Ca5(PO4)3Cl:Eu3+ and Ca5(PO4)3Cl:Sm3+ are red-orange emitting phosphors and the difference in emission intensity as varying the sintering temperatures is observed in both phosphors.
Journal: Current Applied Physics - Volume 16, Issue 3, March 2016, Pages 357–360