Mass-fabricated one-dimensional silicon nanogaps for hybrid organic/nanoparticle arrays
| Autor: | Matthew Glenn Blain, Kenton D. Childs, David R. Wheeler, Stephen W. Howell, Robert J Simonson, James M. Tour, Harry Pang, Shawn M. Dirk |
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| Rok vydání: | 2005 |
| Předmět: |
Materials science
Silicon Mechanical Engineering Nanoparticle chemistry.chemical_element Bioengineering Nanotechnology General Chemistry Edge (geometry) Characterization (materials science) law.invention chemistry Mechanics of Materials law General Materials Science Electrical measurements Electrical and Electronic Engineering Photolithography Electrical conductor Microfabrication |
| Zdroj: | Nanotechnology. 16:754-758 |
| ISSN: | 1361-6528 0957-4484 |
| Popis: | Optical lithography based on microfabrication techniques was employed to fabricate one-dimensional nanogaps with micrometre edge lengths in silicon. These one-dimensional nanogaps served as a platform on which organic/nanoparticle films were assembled. Characterization of the gaps was performed with high-resolution TEM, SEM, and electrical measurements. Novel self-assembling attachment chemistry, based on the interaction of silicon with a diazonium salt, was used to iteratively build a multi-layer nanoparticle film across a 7 nm gap. By using nanoparticles capped with an easily displaced ligand, a variable conductive path was created across the 1D nanogap. Electrical measurements of the gap showed a dramatic change in the I(V) characteristics after assembly of the nanoparticle film. |
| Databáze: | OpenAIRE |
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