Elaboration by spray pyrolysis and characterization in the VUV range of phosphor particles with spherical shape and micronic size

• Published in: Journal of physics. D, Applied physics Vol. 38; no. 17; pp. 3261 - 3268
• Main Authors: Joffin, Nicolas, Caillier, Bruno, Dexpert-Ghys, Jeannette, Verelst, Marc, Baret, Guy, Garcia, Alain, Guillot, Philippe, Galy, Jacques, Mauricot, Robert, Schamm, Sylvie
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Bristol IOP Publishing 07.09.2005; Institute of Physics
• Subjects: Chemical Sciences; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Material chemistry; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Other solid inorganic materials; Photoluminescence; Physics; Pyrolysis; Vacuum ultraviolet spectrometry; Ternary compounds; Spray coatings; Zinc silicates; Plasma display panel; Binary compounds; Manganese additions; Experimental device; Experimental study; Absorption coefficients; Microparticles; Thin films; Europium additions; Electron energy loss spectra; Optical properties; Phosphorescence; Spherical particle; Chemical synthesis; Yttrium oxides; Combustion synthesis; Plasma applications; Solids; Thermomechanical treatments; Electron energy loss spectroscopy
• ISSN: 0022-3727; 1361-6463
• DOI: 10.1088/0022-3727/38/17/S30

Y2O3: Eu and Zn2SiO4 : Mn are the red and green phosphors actually used in plasma display panels. These phosphors have been prepared by spray pyrolysis synthesis and thermal post-treatments. Their optical properties in the vacuum ultraviolet (VUV) energy range have been investigated. The absorption coefficients have been extracted from electron energy loss spectroscopy. The luminescence properties of phosphors from spray pyrolysis have been characterized under UV or VUV excitations with different dedicated experimental set-ups: excitation spectroscopy, measurements of luminescence efficiencies under Hg lamp, pure Xe and Ne-Xe discharges, determinations of luminescence decay times under plasma excitation. The characteristics have been compared with those of corresponding commercial phosphors.