Sol–gel preparation and luminescence properties of nanophosphors Y2−xTbxSiO5 derived from in situ assembling hybrid precursors

Using rare earth coordination polymers with salicylic acid as precursors for the luminescence species in Y2SiO5: Tb3+, with polyacrylamide (PAM) as dispersing media and fuel, Y2−xTbxSiO5 with different doping content of terbium ions (x=0.02, 0.04, 0.06, 0.08, 0.10, 0.12, 0.16 and 0.20, respectively)...

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Veröffentlicht in:Journal of non-crystalline solids 2005-03, Vol.351 (6-7), p.618-621
Hauptverfasser: Huang, Honghua, Yan, Bing
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Yan, Bing
description Using rare earth coordination polymers with salicylic acid as precursors for the luminescence species in Y2SiO5: Tb3+, with polyacrylamide (PAM) as dispersing media and fuel, Y2−xTbxSiO5 with different doping content of terbium ions (x=0.02, 0.04, 0.06, 0.08, 0.10, 0.12, 0.16 and 0.20, respectively) were synthesized by the in situ assembly of hybrid precursors. X-ray diffraction and scanning electronic microscope show that these materials have the nanometer size of 80–120nm. These nanometer materials exhibit strong green luminescence at 542nm. For the higher Tb3+ concentration, a cross-relaxation process between Tb3+ ions results in the quenching of the corresponding 5D3 emission.
doi_str_mv 10.1016/j.jnoncrysol.2005.01.048
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
Physics
title Sol–gel preparation and luminescence properties of nanophosphors Y2−xTbxSiO5 derived from in situ assembling hybrid precursors
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