Localized joule heating as a mask-free technique for the local synthesis of ZnO nanowires on silicon nanodevices.
basic_science · Level V
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- Record sourced from PubMed, PMID 22007768.
- Also identified by DOI 10.1021/nl202539m.
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Abstract
We report a mask-free technique for the local synthesis of ZnO nanowires (NWs) on polysilicon nanobelts and polysilicon NW devices. First, we used localized joule heating to generate a poly(methyl methacrylate) (PMMA) nanotemplate, allowing the rapid and self-aligned ablation of PMMA within a short period of time (ca. 5 μs). Next, we used ion-beam sputtering to prepare an ultrathin Au film and a ZnO seed layer; a subsequent lift-off process left the seed layers selectively within the PMMA nanotemplate. Gold nanoparticles and ZnO NWs were formed selectively in the localized joule heating region.
Medical subject headings
- Crystallization
- Nanostructures
- Nanotechnology
- Silicon
- Titanium
- Zinc Oxide