Red and green fluorosulfide phosphor, preparation method and white-light emitting diodes

摘要

Novel red and green fluorosulfide phosphors have a chemical formula of (A_1-x-yCe_xB_y)SF, wherein A and B are both trivalent metal ions, 0x≦0.1, and 0≦y≦1. A is a rare earth metal, B is a rare earth metal or a group 13 metal. A preparation method of the fluorosulfide and white-light emitting diode application thereof are also disclosed.