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The Ytterbium doped gadolinium gallium garnet [Yb3+:Gd3Ga5O12, Yb:GGG] precursor powders were synthesized via homogeneous precipitation method using Yb2O3, Ga2O3, Gd2O3 and ammonium bicarbonate [NH4HCO3] as precipitator, and ammonium sulfate [(NH4)2SO4] as additive. The evolution of phase composition and micro-structure of the powders were characterized by TG- DTA, XRD, IR, and TEM. The results indicate that all precursor powders completely transform to Yb:GGG phase by calcining at 900 ℃ for 8 h, the resultant powders are well dispersed and have smaller particle size approximately 80 nm owing to the electrostatic effect.
The Ytterbium doped gadolinium gallium garnet [Yb3 +: Gd3Ga5O12, Yb: GGG] the precursors were synthesized via YB2O3, Ga2O3, Gd2O3 and ammonium bicarbonate [NH4HCO3] as precipitator, and ammonium sulfate [(NH4) 2SO4] as additive. The evolution of phase composition and micro-structure of the powders were characterized by TG-DTA, XRD, IR, and TEM. The results indicate that all the precursor powders completely transform to Yb: GGG phase by calcining at 900 ° C for 8 h, the causing powders are well dispersed and have smaller particle size about 80 nm owing to the electrostatic effect.