“White” phosphor on the basis of Gd2(MoO4)3: Tm,Tb,Eu single crystal

Abstract A single-crystal sample of Gd 2 (MoO 4 ) 3 simultaneously doped with europium, terbium and thulium is grown. The Tm, Tb and Eu dopants are employed as the luminescent centers emitting light in the red, green and blue ranges. Spectroscopy investigation reveals that simultaneous luminescence of the centers of all three types to produce white light occurs only under the sample excitation with ultraviolet (UV) light within the wavelength range 350  LED  = 365 nm is applied in order to show that the Gd 2 (MoO 4 ) 3 :Tm,Tb,Eu crystal converts its UV flux into white light. So, it is demonstrated that white light may be produced using one matrix with luminous centers of three types.