| DOI | Trouver le DOI : https://doi.org/10.1063/1.3562367 |
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| Auteur | Rechercher : Zikovsky, Janik; Rechercher : Dogel, Stanislav A.1; Rechercher : Salomons, Mark H.1; Rechercher : Pitters, Jason L.1; Rechercher : Dilabio, Gino A.1; Rechercher : Wolkow, Robert A.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut national de nanotechnologie
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| Format | Texte, Article |
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| Sujet | growth process; metal contacts; molecular patterns; organic nanostructures; Si(1 0 0); silicon surfaces; templating effects; dangling bonds; electric fields; nanostructures; scanning tunneling microscopy; dimers |
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| Résumé | It has previously been shown that multimolecular organic nanostructures form on H-Si(100)-21 via a radical mediated growth process. In this mechanism, growth begins through the addition of a molecule to a silicon surface dangling bond, followed by the abstraction of a neighboring H atom and generation of a new dangling bond on the neighboring site. Nanostructures formed by this mechanism grow along one edge of a dimer row. Here, we explored the possibility of using lithographically prepared, biased metal contacts on the silicon surface to generate an electric field that orients molecules during the growth process to achieve growth in the perpendicular-to-row direction. The formation of some nanostructures in a direction that was nearly perpendicular to the dimer rows was achieved, whereas such features were not formed in the absence of the field. Analysis of the scanning tunneling microscopy images suggests that the formation of these nanostructures may involve self-templating effects in addition to dangling bond diffusion rather than a straightforward additionabstraction mechanism. These initial results offer some indication that a molecular pattern writer can be achieved. © 2011 American Institute of Physics. |
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| Date de publication | 2011 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21271969 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 62d7afa2-bfd4-4a30-a332-b5ee14d674e0 |
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| Enregistrement créé | 2014-05-14 |
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| Enregistrement modifié | 2020-04-21 |
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