Effect of partially replacement of Gd3+ ions on fluorescence properties of YBO3:Eu3+ phosphor synthesized via precipitation method

• The proposed material was successfully synthesized via precipitation method.
• Shifting of peak position in XRD pattern from YBO3:Eu3+ to GdBO3:Eu3+with same crystal structure studied in details.
• Effect of Gd3+ ions on fluorescence properties of YBO3:Eu3+ studied in details.
• The outstanding enhancement in fluorescence properties, when molar concentration of Gd3+ ions in (Y, Gd)BO3:Eu3+ increased.
• The increasing energy band gap, when Y to Gd ions ratio increased in (Y, Gd)BO3:Eu3+.

The series of (Y(1−x)Gdx)BO3:0.01Eu3+ phosphors was successfully synthesized by precipitation method. All phosphors were characterized by X-ray diffraction pattern (XRD) for crystalline structure and UV–vis, photoluminescence (PL) and decay curves measurements were carried out to characterize their optical properties. The PL emission spectra of (Y(1−x)Gdx)BO3:0.01Eu3+ phosphors indicated that red–orange (595 nm) color could be well excited by 233 nm. The effect of x (Gd3+ ions) increases in (Y(1−x)Gdx)BO3:0.01Eu3+ on PL properties has been examined. The results showed that increment of x molar concentration in (Y(1−x)Gdx)BO3:0.01Eu3+ would lead to a outstanding enhancement of fluorescence intensity. The chromaticity coordinates (CIE) were calculated. The R/O ratio of the luminescence intensity of 5D0 → 7F2 (red) to 5D0 → 7F1 (orange) transitions were very well increases with the increasing percentage of Gd3+ ions in (Y(1−x)Gdx)BO3:0.01Eu3+ phosphor.

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