Abstract
By combining the methods of co-precipitation and hydrothermal synthesis methods, the complete solid-solution of Eu1−xBixVO4 with monophasic zircon-type structure was successfully synthesized. The zircon-type structure was determined by X-ray diffractometer and Raman scattering, and the optical properties were characterized by ultraviolet-visible diffuse reflectance and photoluminescence spectrophotometer. The results indicate that the band gap of Eu1−xBixVO4 could be adjusted and controlled by bismuth content in the range of x=0–0.9. Meanwhile, the Eu1−xBixVO4 solid-solution phosphors show strong red light emission was shown in 619nm under both near UV-light and visible-light excitation. Notably, the emission intensity of Eu1−xBixVO4 (x=0.4) is the strongest in all samples.
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