Patent ID: 7901651
Filing Date: 2011-03-08
Classification: C01B,C09K

Abstract:
1. A method of preparing a zinc silicate-based phosphor, the method comprising: preparing a solution comprising a Zn precursor compound and a Si precursor compound, a solvent of the solution comprising one selected from the group consisting of ethanol, methanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 1-pentanol, 2-pentanol, 3-pentanol, 1-hexanol, and 1-heptanol; adding a coprecipitant to the solution to form precipitation, coprecipitant including hydrazine; heat-treating the solution in an environment having an ambient temperature of 100° C. to 300° C. in which the precipitation is formed to synthesize zinc silicate (Zn heat-treating the synthesized zinc silicate in an environment having an ambient temperature of 600° C. to 1100° C., the synthesized zinc silicate (Zn