Work

Mass-fabricated one-dimensional silicon nanogaps for hybrid organic/nanoparticle arrays

Year: 2005

Type: article

Abstract: 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.

Source: Nanotechnology

DOI: 10.1088/0957-4484/16/6/022