Patent ID: 7255812
Filing Date: 2007-08-14
Classification: C09K

Abstract:
1. A method of making a haloapatite phosphor having a general formula represented by (Ca (1−x−y) Mn x Sb y ) 5 (PO 4 ) 3 (F (1−z−y) Cl z O y ), where 0<x<0.05, 0.004<y<0.01, and 0<z<0.1, the method comprising: (a) formulating a blend of ingredients to make the haloapatite phosphor, the ingredients including CaHPO (b) partially substituting an amount of an equimolar combination of an ammonium phosphate compound and calcium carbonate for an equal number of moles of CaHPO (c) combining the ingredients in their formulated amounts to form the blend; and (d) firing the blend to form the haloapatite phosphor.