| DOI | Resolve DOI: https://doi.org/10.1063/1.3562367 |
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| Author | Search for: Zikovsky, Janik; Search for: Dogel, Stanislav A.1; Search for: Salomons, Mark H.1; Search for: Pitters, Jason L.1; Search for: Dilabio, Gino A.1; Search for: Wolkow, Robert A.1 |
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| Affiliation | - National Research Council of Canada. National Institute for Nanotechnology
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| Format | Text, Article |
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| Subject | 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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| Abstract | 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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| Publication date | 2011 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21271969 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 62d7afa2-bfd4-4a30-a332-b5ee14d674e0 |
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| Record created | 2014-05-14 |
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| Record modified | 2020-04-21 |
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