Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
권호 표지

[ $Gd_2O_3:Eu$ ] System: Structural Study of the Influence of Luminescence Center Concentration

  • Rabanal, M.E. (University Carlos III) ;
  • Gomez, L. (University Carlos III) ;
  • Khalifa, A. (Institute of Technical Sciences of SASA) ;
  • Mancic, L. (Institute of Technical Sciences of SASA) ;
  • Milosevic, O. (University Carlos III) ;
  • Torralba, J.M. (University Carlos III)
  • Published : 2006.09.24
Download PDF
⟨ Previous Next ⟩

Abstract

The influence of $Eu^{3+}$ doping on the structural and morphological properties of the $Gd_2O_3:Eu^{3+}$ phosphor system, obtained ultrasonically via Spray Pyrolysis from common gadolinium and europium nitrate solutions, was studied. The particle morphology, crystalline and chemical structure were studied by XRD, SEM and EDS. TEM was applied in order to identify the structure and growth of "primary nanoparticles" and determine the presence of domains locally affected by "Moires Frames" and "Crystallite Size". The SADP allows determining the presence of a polycrystalline material with two phases in the "as-prepared" samples, and only an Ia3 phase along the thermal treatment.

Keywords