Ultrahigh purity beta gallium oxide microstructures. Issue 17 (1st September 2022)

• Record Type: Journal Article
• Authors: Suárez, M.; Arias, A.; Castillo-Saenz, J.R.; Curiel-Alvarez, M.; Pérez-Landeros, O.; Mateos, D.; Martínez-Guerra, E.; Concha-Balderrama, A.; Valdez-Salas, B.; Nedev, N.
• Is Part Of: Ceramics international. Volume 48:Issue 17(2022)
• Page Start: 25322
• Page End: 25325
• Publication Date: 2022-09-01
• Subjects: β-Ga2O3 -- Hydrothermal -- Microstructures; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2022.05.205
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Ultrahigh purity gallium oxide (Ga2 O3 ) microstructures were synthesized via hydrothermal method using gallium nitrate hydrate and ammonium hydroxide to synthesize gallium hydroxide, followed by calcination at a 1000 °C. Scanning electron microscopy revealed that following calcination, the material showed a large number of microparticles with lengths of ≤1 μm and diameters of 250–350 nm. Energy-dispersive X-ray spectroscopy, X-ray diffraction, Raman spectroscopy, infrared spectroscopy, and X-ray photoelectron spectroscopy analyses indicated the high purity and near-stoichiometric composition of the material. The results also confirm the formation of β-phase Ga2 O3 with high crystallinity.