Broadband sensitized white light emission of g-C3N4/Y2MoO6:Eu3+ composite phosphor under near ultraviolet excitation

• The g-C3N4/Y2MoO6:Eu3+ composite phosphors were synthesized and characterized.
• White light emission was realized in the g-C3N4/Y2MoO6:Eu3+ composites under UV excitation.
• A novel idea to realize the broadband sensitized white light emission in phosphors was provided.

The g-C3N4/Y2MoO6:Eu3+ composite phosphors were synthesized and characterized by X-ray diffraction, Fourier transform-infrared spectroscopy, ultraviolet visible diffuse reflection spectra, photoluminescence spectra and luminescence decay curves. Under the excitation of 360 nm near ultraviolet light, these composite phosphors show tunable emission from blue to red region, in which white light emission can be obtained in term of appropriate quality proportion of Y2MoO6:Eu3+ relative to g-C3N4/Y2MoO6:Eu3+. In addition, the emission color can be also dependent on the excitation wavelength in g-C3N4/Y2MoO6:Eu3+ composite phosphor.

Under the excitation of 360 nm near ultraviolet light, the g-C3N4/Y2MoO6:Eu3+ composite phosphors show tunable emission from blue to red region, in which white light emission can be obtained.Figure optionsDownload as PowerPoint slide