| abstract |
A method for producing a surface-treated phosphor having high initial light emission efficiency and high long-term reliability, a surface-treated phosphor obtained by the method, a wavelength conversion member and a light-emitting device using the same. The method for producing a surface-treated phosphor of the present invention comprises an alkaline earth silicate phosphor containing an alkaline earth metal silicate, and a surface treatment layer covering the surface of the alkaline earth silicate phosphor. A surface-treated phosphor for producing a surface-treated phosphor having the alkaline earth silicate phosphor, sulfate, phosphate, carbonate, borate, boric acid, titanate And a surface treatment layer formed on the surface of the alkaline earth silicate phosphor by contacting with at least one surface treatment substance selected from the group consisting of fluoride and fluoride in the presence of a non-aqueous solvent Processing steps. [Selection] Figure 1 |