Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Patent
1997-12-05
2000-03-21
Koslow, C. Melissa
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
427213, 427215, 427255, 2523014S, 2523014H, 2523014R, 2523014P, 2523015, 2523016R, 2523016S, 2523016F, 2523016P, C09K 1100
Patent
active
060398949
ABSTRACT:
The invention relates to a method for producing activated, substantially monodisperse, phosphorescent particles and particles formed thereby. The method suspends substantially monodisperse, phosphor-precursor particles in a fluidizing gas and then introduces a reactive gas to contact the suspended phosphor-precursor particles. Heating the suspended phosphor-precursor particles to a reaction temperature then forms unactivated phosphorescent particles. In another embodiment, the phosphor-precursor particles may be heated to a reaction temperature where they decompose to form the unactivated phosphor particles. The unactivated phosphorescent particles suspended within the fluidizing gas are activated by heating the unactivated phosphorescent particles to an activation temperature forming activated, substantially monodisperse, phosphorescent particles.
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Canizales Anastasia
Jiang Liqiang
Jiang Naixiong
Johansson Marie
Kardos Keith
Koslow C. Melissa
SRI - International
STC Technologies
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