Silica glasses doped with Eu3+ions prepared by sol-gel methods were investigated. The X-ray diffraction (XRD) was used to verify the nature of the studied systems. Excitation and emission spectra of Eu3+ ions in sol-gel glass materials were detected. Red-to-orange luminescence intensity ratios R/O related to integrated intensities of 5D0→7F2 to 5D0→7F1 transitions and luminescence lifetimes for 5D0 state of Eu3+ions were determined. The results indicated that spectroscopic parameters for Eu3+ions strongly de-pended on reagents and their relative ratios used for sol-gel glass preparation.
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