From self-organized masks to nanotips: A new concept for the preparation of densely packed arrays of diamond field emitters
| Autor: | Hans-Gerd Boyen, Christoph Hartmann, Alfred Plettl, F. Weigl, Christof P. Dietrich, Oliver Pursche, Martin Möller, Paul J. Ziemann, B. Koslowski, Paul Walther, Sebastian Fricker, Marcel Ott |
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| Rok vydání: | 2006 |
| Předmět: |
Materials science
Silicon Mechanical Engineering chemistry.chemical_element Diamond Nanotechnology General Chemistry Substrate (electronics) engineering.material Electronic Optical and Magnetic Materials Field electron emission chemistry Etching (microfabrication) Materials Chemistry engineering Self-assembly Electrical and Electronic Engineering Reactive-ion etching Nanopillar |
| Zdroj: | Diamond and Related Materials. 15:1689-1694 |
| ISSN: | 0925-9635 |
| DOI: | 10.1016/j.diamond.2006.02.007 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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