Elaboration of phosphor particles with spherical shape and micronic size

Nicolas Joffin (1) , Jeannette Dexpert-Ghys (1) , A Garcia (2) , Marc Verelst (1) , Sylvie Schamm-Chardon (1) , B Caillier (3) , G Baret (4)

1 CEMES - Centre d'élaboration de matériaux et d'études structurales
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
3 CPAT - Centre de Physique des Plasmas de Toulouse
4 DGTec

Red phosphor (Y2O3:Eu) and green phosphor (Zn2SiO4:Mn) powders with a spherical shape and an average diameter of Dv50 = 3.2 +/-0.2 mum have been prepared by the technique of spray-pyrolysis and optimal post-synthetic heat treatments. The photo-luminescence of these powders under excitation in the UV-VUV are measured and compared with those of commercial phosphors used in plasma display panels. Additional characterizations are presented.

Domaines: Physique [physics]

Nicolas Joffin, Jeannette Dexpert-Ghys, A Garcia, Marc Verelst, Sylvie Schamm-Chardon, et al.. Elaboration of phosphor particles with spherical shape and micronic size. Light sources 2004 – Tenth International Symposium on the Science and Technology of Light Sources, Institute of Physics, 2004, Bristol, United Kingdom. pp. 165-166. ⟨hal-01745052⟩