CHLOROSILICATE PHOSPHOR AND PREPARING METHOD OF THE SAME

摘要

The present invention relates to a chlorosilicate based fluorescent body containing rare-earth metals and a production method of the same, and specifically, to a chlorosilicate based fluorescent body containing rare-earth metals having an effect of emitting light in long wavelengths using large ion radius of chlorine elements, and a preparing method of the same. The obtained chlorosilicate based fluorescent body has a composition of M-Si-O-Cl, M-Si-B-O-Cl, M-Si-Al-O-Cl, or M-Si-P-O-Cl, in which M is selected from the group consisting of alkali metal, alkali earth metal, transition metals, the rare-earth metal, and a combination thereof. [Reference numerals] (AA) Metal solution, water soluble silicon compound(WSS); (BB) Immersion(cellulose); (CC) Stirring, grinding, and drying under ultrasound; (DD) First sintering(150-400°C, air); (EE) Second sintering(500-400°C, air); (FF) 700-1400°C, sintering under reduction; (GG) Fluorescent body