Journal
DIAMOND AND RELATED MATERIALS
Volume 15, Issue 10, Pages 1689-1694Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.diamond.2006.02.007
Keywords
diamond crystal; etching; field emission; nanotechnology
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Diblock copolymer based gold nanoparticle arrays are used to pattern diamond and silicon surfaces on the nanoscale. Taking advantage of diblock copolymers forming spherical reverse micelles, which self-assemble into hexagonally ordered arrays when deposited onto a surface, gold nanoparticle patterns are prepared from HAuCl4 loaded poly(styrene)-block-poly(2-vinylpyridine) (PS-b-P2VP) micelles on top of diamond and silicon. By applying these particles as nanomasks for subsequent reactive ion etching, the hexagonal pattern is transferred into the substrate resulting in a corresponding array of diamond nanotips and silicon nanopillars, respectively. In the case of B-doped diamond, these nanotips exhibit a significantly enhanced electron emissivity as compared to a polished surface proving the new functionality resulting from nanopatterning field emitters of an unprecedented areal density. (c) 2006 Elsevier B.V. All rights reserved.
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