| 摘要 |
PURPOSE: A manufacturing method of a nano fluorescent powder for an optical conversion is provided to uniformly manufacture a fluorescent particle of the nano-size which has the excellent optical characteristic which doubly radiates in the domain of 470-750 nm and the domain of 900-1050 nm by using a coprecipitation method. CONSTITUTION: A manufacturing method of a nano fluorescent powder for an optical conversion by using a coprecipitation method comprises a step of manufacturing a mixture by dissolving yttrium oxide, ytterbium oxide, and bismuth oxide in the acid solution; a step of adding nonionic solution and ammonium metavanadate in the mixture; a step of adding a dispersing agent and the nonionic solution in the solution in which nonionic solution and ammonium metavanadate is added; a step of forming a precipitate by adding the ammonia solution; a step of washing and drying after filtering the precipitate; and a step of plasticizing the washed and dried precipitate. [Reference numerals] (AA) Start; (BB) Manufacturing a mixture by dissolving yttrium oxide, ytterbium oxide, and bismuth oxide in the acid solution; (CC) S1 step; (DD) Adding nonionic solution and ammonium metavanadate in the mixture; (EE) S2 step; (FF) Adding a dispersing agent and the nonionic solution in the solution; (GG) S3 step; (HH) Forming a precipitate by adding the ammonia solution; (II) S4 step; (JJ) Filtering the precipitate, washing and drying; (KK) S5 step; (LL) Plasticizing; (MM) S6 step; (NN) End |
