Abstract Besides gas sensitivity, luminescence characteristics of NASICON (Na + super ion conductor) materials were found. In this paper, the photoluminescence (PL) properties of NASICON and doped-NASICON materials were investigated. NASICON was synthesized by conventional sol–gel process and doped with Dy 2O 3 by 1 wt.%, 3 wt.% and 5 wt.%, respectively. The ultraviolet light (325 nm, He–Cd laser) excited luminescent emissions of the resulted powders are recorded vs. wavelength in the range from 350 to 650 nm. The main peak of the pure NASICON is found at the wavelength of 474 nm (blue light), the transition energy is 2.616 eV. The luminescent intensity is increased after doping with Dy 2O 3.