کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1489325 | 992304 | 2012 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Investigation of energy absorption and transfer process of Tb3+ or Eu3+ excited Na3Gd(PO4)2 in the VUV region Investigation of energy absorption and transfer process of Tb3+ or Eu3+ excited Na3Gd(PO4)2 in the VUV region](/preview/png/1489325.png)
Na3Gd(PO4)2, Na3Gd0.94(PO4)2:0.06Tb3+ and Na3Gd0.94(PO4)2:0.06Eu3+ are prepared by solid-state reaction and their photoluminescence (PL) properties are investigated in the ultraviolet (UV) and vacuum ultraviolet (VUV) region. The obtained results show that Na3Gd0.94(PO4)2:0.06Tb3+ has an efficient emission under 147 nm excitation, but the emission efficiency of Na3Gd0.94(PO4)2:0.06Eu3+ is low under 147 nm excitation. We discuss the energy absorption and transfer process in the VUV region to solve the special phenomenon.
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► Na3Gd(PO4)2:Eu3+ has a low emission comprising with Na3Gd(PO4)2:Tb3+ under 147 nm excitation.
► Excitation efficiency of the host matrix of Eu3+ excited Na3Gd(PO4)2 is lower than that of Tb3+.
► Energy transfer efficiency of Eu3+ excited Na3Gd0.94(PO4)2:0.06Eu3+ is lower than that of Tb3+.
Journal: Materials Research Bulletin - Volume 47, Issue 1, January 2012, Pages 142–145