FLUORIDE PHOSPHOR AND PRODUCTION METHOD THEREOF, AND SEMICONDUCTOR LIGHT-EMITTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a red light emitting fluoride phosphor with excellent water resistance.SOLUTION: A fluoride phosphor contain at least a rare-earth element fluoride on a surface of a fluoride particle represented by general formula AMF:Mn. In the formula, M is at least one metal element selected from among silicon (Si), titanium (Ti) and germanium (Ge), A is at least one alkali metal element selected from sodium (Na) and potassium (K). The phosphor has improved water resistance and excellent long-term stability. Also provided is a semiconductor light-emitting device based on the same.SELECTED DRAWING: Figure 1