Title of article
Enhanced photoluminescence properties of (Y,Bi) BO3:RE3+ (RE=Eu, Tb) phosphors synthesized at low temperature
Author/Authors
Jianhua Gao، نويسنده , , Limei Song، نويسنده , , Ximai LIU، نويسنده , , Teng Guo، نويسنده , , Teng LU، نويسنده , , Xiaoyun Hu، نويسنده , , Dekai Zhang، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
5
From page
335
To page
339
Abstract
Eu3+ or Tb3+ doped Y(1-x)BixBO3 (0.1≤x≤0.4) phosphors were synthesized using the simple solid state method at low temperature from 700 to 870 °C. The analysis of the X-ray diffraction (XRD) indicated that the system of Y(1-x)BixBO3 (0.1≤x≤0.4) had the same structure as that of YBO3. The excitation spectra, emission spectra and decay lifetimes of all samples were measured in detail. All the samples exhibited characteristic luminescence of Eu3+ or Tb3+. Y0.65Bi0.2Eu0.15BO3 and Y0.8Bi0.1Tb0.1BO3 samples had the strongest Eu3+ and Tb3+ luminescence, and showed highly enhanced luminescence compared with its corresponding sample without Bi3+. In addition, they could be efficiently excited by 254 nm light of a UV lamp, indicating a potential application for the phosphors in the fluorescent lamps.
Keywords
optical materials , rare earths , X-ray diffraction , chemical synthesis , Luminescence
Journal title
Journal of Rare Earths
Serial Year
2011
Journal title
Journal of Rare Earths
Record number
1246230
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