Effect of Solvent on the Luminescence Properties of Zn₃V₂O₈ and the First Principle Calculation of α- Zn₃V₂O₈

In this paper, Zn₃V₂O₈ phosphors were synthesized by high temperature solid method. The effect of flux on the luminescent properties was studied. And based on the first-principles planar wave super-soft pseudo potential method of density functional theory (DFT), the α- Zn₃V₂O₈ crystal model was used to calculate the electronic structure and optical properties of the model. The results show that the crystal morphology of the sample is improved, the grain agglomeration is reduced and the crystal structure isn't changed. The excitation spectrum ranges from 300-400nm, the excitation peak is at 360nm, and the emission spectrum is in the range of 420-690 nm, the peak at 550 nm. α- Zn₃V₂O₈ is an indirect band gap, α- Zn₃V₂O₈ has a band gap of 2.715eV, α- Zn₃V₂O₈ has a strong UV-near ultraviolet light absorption capacity. (paper)