| 摘要 |
PURPOSE: Provided is a method for producing oxide-based phosphor which has improved property and is more stable than existing sulfide-based phosphor, by using combustion synthesis. CONSTITUTION: The method comprises the steps of (i) dissolving a phosphor host material having composition emitting desired light, and activator and co-activator in nitrate solution(step 1), (ii) adding an organic acid to solution obtained in the step 1, so as to form a precursor(step 2), (iii) adding a base to solution obtained in the step 2 with mixing, so as to adjust a pH of the solution to 3-9(step 3), (iv) igniting the solution obtained in the step 3 at 200-500 deg.C to form a precursor powder(step 4), and (v) mixing the precursor powder obtained in the step 4 with boric acid(H3BO3) or borax(B2O3), and calcining the mixture at reducing atmosphere to form an oxide-based phosphor(step 5). |
