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Self-aligned formation of graphite nanocones was carried out by oxygen-plasma etching of highly oriented pyrolytic graphite (HOPG) covered with gold nanoparticles which resulted from the immersion of HOPG samples pretreated with 3-(2-Aminoethlyamino) propyltrimethoxysilane in colloidal gold solutions. The areal density of gold nanoparticles, which determined the density of nanocones, depended on the...
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