Article ID Journal Published Year Pages File Type
1527177 Materials Chemistry and Physics 2008 5 Pages PDF
Abstract
Vycor glasses impregnated with Tb3+ and Ce3+(or Gd3+) were prepared as vacuum ultraviolet (VUV) and ultraviolet (UV) luminescent materials by adsorption of rare-earth ions into a special porous Vycor glass followed by reduction sintering in a CO atmosphere. In the presence of Ce3+(or Gd3+), the Tb3+ emissions under VUV and UV excitation were significantly enhanced owing to energy transfer from Ce3+(or Gd3+) to Tb3+. Furthermore, it was found that the intensity of Tb3+ emissions depended on the solution concentration of Ce3+(or Gd3+) ions under the excitation at 160 nm but not at 231 nm. The reason may be due to the direct and indirect excitation of Tb3+ under UV and VUV lights, respectively.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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