Y0.95-xEu0.05VO4:x Bi3+(x = 0, 0.02, 0.04,0.06, 0.08, and 0.10 mol) six photoluminescence films were deposited on glass substrates by sol–gel spin-coating method. Their morphology and optical property were investigated. The micrographs for the six samples have no change with Bi3→doping. The emission spectra result shows that a dominant red emission peak at 620 nm, which is due to the Eu3+electric dipole transition of5D0→7F2,is observed under excitation wavelengths 254 nm. Furthermore, with the content of Bi3→increasing from 0 to0.08 mol, the emission intensity of samples strengthens and reaches a maximum at x = 0.08 mol, then decreases with the doping content to 0.10 mol.
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