Abstract
The catalytic reaction of platinum during a hydrogen etching process has been used to perform controlled vertical nanopatterning of silicon carbide substrates. A first set of experiments was performed with platinum powder randomly distributed on the SiC surface. Subsequent hydrogen etching in a hot wall reactor caused local atomic hydrogen production at the catalyst resulting in local SiC etching and hole formation. Secondly, a highly regular and monosized distribution of Pt was obtained by sputter deposition of Pt through an Au membrane serving as a contact mask. After the lift-off of the mask, the hydrogen etching revealed the onset of well-controlled vertical patterned holes on the SiC surface.
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61.46.+w; 68.37.-d; 81.65.Cf
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Moyen, E., Wulfhekel, W., Lee, W. et al. Etching nano-holes in silicon carbide using catalytic platinum nano-particles. Appl. Phys. A 84, 369–371 (2006). https://doi.org/10.1007/s00339-006-3639-4
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DOI: https://doi.org/10.1007/s00339-006-3639-4