Synthesis of porous γ-gallium oxide films using refrigerator aging oxidation from gallium nanoparticles

Abstract

Porous gallium oxide films were tried to synthesize at low temperatures. Ga nanoparticle dispersions were synthesized using ultrasound irradiation in 2-propanol and two films methods were considered. In the case of the spray coating of Ga nanoparticle dispersions and treatment with hydrazine vapor, Ga films were obtained. In the case of depositing Ga nanoparticles on a cover glass and aging them in hydrazine solution at a refrigerator temperature, porous £-Ga 2 O 3 film was synthesized. This new process of low-temperature aging in a refrigerator using hydrazine solution allows synthesizing porous £-Ga 2 O 3 film. Generally, the synthesis of oxide ceramics requires high-temperature processing, but this method allows oxidation at low temperatures, such as refrigerator temperatures, making it an energy-efficient process.