Low-temperature synthesis of lutetium gallium garnet (LGG) using sol–gel technique

Lutetium gallium garnet (Lu3Ga5O12, LGG) was synthesized by an aqueous sol–gel process. The sol–gel method based on metal chelates with 1,2-ethanediol in aqueous media has been selected. The obtained bulk Lu3Ga5O12 samples were characterized by FTIR spectroscopy and powder X-ray diffraction analysis. The XRD patterns of the ceramic materials sintered at 1000 °C showed the formation of monophasic garnet phase. The Lu3Ga5O12 possesses the cubic structure with lattice parameter a = 12.282(3) Å. This garnet structure material doped with different active elements could be potential candidate as laser material for solid state lasers.