AVS 56th International Symposium & Exhibition
    Nanometer-scale Science and Technology Tuesday Sessions
       Session NS2-TuA

Paper NS2-TuA2
Templated Self Assembly of 6 nm Gold Nanoparticles by Means of micro-Trough Technique

Tuesday, November 10, 2009, 2:20 pm, Room L

Session: Templated Self-Assembly
Presenter: L.E. Ocola, Argonne National Laboratory
Authors: L.E. Ocola, Argonne National Laboratory
A. Chao, Illinois Mathematics and Science Academy
Correspondent: Click to Email
This paper demonstrates that combining top-down electron beam lithography and bottom-up colloidal chemical assembly leads to large scale placement of nanoparticles on arbitrary flat substrates. We report on the templated self-assembly of 6 nm gold nanoparticles using template geometries that lend themselves to induce self-assembly at distances significantly larger than typical trench geometry constraints. We can obtain oriented and ordered arrays of 6 nm gold nanoparticles that extend hundreds of nanometers away from any template boundary. The goal is to be able to create oriented arrays of nanoparticles over hundreds of microns. We have developed a micro-Trough technique where we define a specific area on where to create an equivalent of a Langmiur Blodgett trough directly on a sample surface. Using this technique we overcome liquid current effects usually encountered in traditional colloid dispersion deposition techniques. Progress in templated self-assembly will lead to novel nanophotonic and chemical sensing devices, along with the means to extend top-down nanofabrication below the 10 nm barrier.