In-air self-reduction synthesis and luminescence properties from Mg Ca Na (PO ) :Eu -Eu excited using ultraviolet light.

A series of Mg Ca Na (PO ) :Eu -Eu phosphors was successfully synthesized using a high-temperature solid-state method in an air atmosphere. The phase structures and luminescence properties of the samples were studied in detail. The phosphors exhibited strong visible light emission under different wavelengths of ultraviolet light excitation. By harmonizing the doping concentration of Eu to adjust the relative luminescence intensity of Eu and Eu , a colourful emission of phosphors could be achieved. In addition, the colour coordinates of the International Commission on lighting indicated that Mg Ca Na (PO) :Eu -Eu could be considered as a potential blue, orange and red phosphor for white light-emitting diode applications.