Abstract
Porous SiC (PSC) was successfully synthesized via UV-assisted pulsed current anodic etching of hexagonal n-type silicon carbide (6H–SiC) substrate using different etching times. The micromorphological and structural characterizations of PSC were reported. Field-emission scanning electron microscopy (FESEM) results established that the etching time can be considered as a significant etching parameter that controls the micromorphology aspects of the porous SiC specimens. Furthermore, the adjustment of etching time can convert SiC pores into nanowire structures. Raman spectroscopy characterization was performed as well, where the shape of the Raman spectra was analyzed, in precise the transverse optical E1 (TO) and the longitudinal optical A1 (LO) peaks, which correlate powerfully with the porous SiC micromorphology. This simplistic synthesis may be considered as a potential and affordable technique to synthesize SiC nanowires for extensive applications.
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Acknowledgements
The authors gratefully acknowledge the financial support provided by the School of Physics, Universiti Sains Malaysia, under Grant No. 1001/CINOR/811239. The author Dr. Khaled M. Chahrour expresses gratitude to Universiti Sains Malaysia (USM) for awarding the Post-Doctoral Fellowship position in School of Physics.
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Chahrour, K.M., Hashim, M.R. Synthesis of SiC Nanowires via Controllable Anodic Etching Time. Appl. Phys. A 126, 539 (2020). https://doi.org/10.1007/s00339-020-03677-1
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DOI: https://doi.org/10.1007/s00339-020-03677-1