Phase controllable synthesis of unusual ɛ-Ga2O3 single crystals with promising luminescence property

A new synthetic approach to unusual ɛ-Ga2O3 with improved luminescence properties was developed by taking advantage of a microwave-assisted synthesis followed by calcinations at appropriate temperatures. Upon control of crystallinities of GaOOH precursors and the followed calcination temperature, the single crystalline ɛ-Ga2O3 nanorods can be synthesized in a large scale. The resulting products were characterized by transmission electron microscopy, powder X-ray diffraction, and cathodoluminescence. The luminescence property of this unusual Ga2O3 phase was investigated for the first time.

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