Gallium oxide is a kind of inorganic compound white powder, the chemical formula is Ga2O3. It is a kind of wide band gap semiconductor material, Eg=4.9eV. Its electrical conductivity and light emitting properties have been concerned all the time, Ga2O3 has been widely used as the insulation layer of GA-based semiconductor materials, ultraviolet light filters and gallium oxide crystal growth materials in optoelectronic devices.

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