Synthesis, mechanism and characterization of urchin-like Ga2O3 microspheres. Issue 16 (29th March 2022)

• Record Type: Journal Article
• Authors: Zhang, Jie; Mu, Wenxiang; Bo, Fu; He, Gaohang; Ding, Sunan; Li, Yang; Jia, Zhitai
• Is Part Of: CrystEngComm. Volume 24:Issue 16(2022)
• Page Start: 3005
• Page End: 3013
• Publication Date: 2022-03-29
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/d2ce00055e
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : A simple sonication–heat treatment method to prepare novel urchin-like β-Ga2 O3 microspheres with uniformly distributed nanowires is reported. Its unique morphology is expected to have potential in optoelectronic devices and other fields. Abstract : An effective method without a catalyst and template was developed to synthesize novel micro/nanostructures of gallium oxide (Ga2 O3 ) for the first time. Urchin-like microspheres with uniformly distributed nanowires were well prepared on a Si(100) substrate by heating at 1000 °C. The product was characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) and cathodoluminescence (CL), and was found to be monoclinic gallium oxide with a high crystalline quality and intense ultraviolet–blue CL emission properties at room temperature. Possible growth mechanism of urchin-like microspheres was proposed. The results serve to reinforce the potential of Ga2 O3 micro/nanostructures for optoelectronic device applications.