公开(公告)号：US10563121B2

公开(公告)日：2020-02-18

申请号：US15171098

申请日：2016-06-02

Applicant: GENERAL ELECTRIC COMPANY

Inventor： William Winder Beers ,  Jianmin He ,  Fangming Du ,  James Edward Murphy ,  William Erwin Cohen ,  Clark David Nelson ,  Cynthia Susan Link

IPC: C09K11/61 ,  H01L33/50

Abstract: A method includes obtaining particles of a phosphor precursor of formula Ax[MFy]:Mn4+, reducing sizes of the particles of the phosphor precursor by wet milling the particles and annealing the particles that are wet milled by contacting the particles with a fluorine-containing oxidizing agent. Additionally, a manganese doped complex fluoride phosphor prepared by this method is provided. A lighting apparatus and backlight device that include manganese-doped phosphor prepared by this method also are provided.