| AVS 64th International Symposium & Exhibition | |
| Nanometer-scale Science and Technology Division | Wednesday Sessions |
| Session NS+MN+MS+SS-WeA |
| Session: | Nanopatterning, Nanofabrication and 3D Nanomanufacturing |
| Presenter: | Tyler Westover, Brigham Young University |
| Authors: | T. Westover, Brigham Young University R.F. Davis, Brigham Young University B. Uptrey, Brigham Young University J. Harb, Brigham Young University A. Woolley, Brigham Young University S. Noyce, Brigham Young University |
| Correspondent: | Click to Email |
The formation of gold nanowires using bottom up nanofabrication has resulted in wires of small dimension or high conductivity, but not both. We form nanowires on DNA origami through directed assembly of nanoparticles or nanorods followed by electrochemical plating. These metal deposition processes result in non-ideal microstructure and correspondingly low conductivities. To remedy this we have sought to reduce the grain boundary density and surface roughness through annealing. However annealing causes the wires to coalesce into beads. We have found that through the use of a polymer the wires can be templated to retain their overall morphology, while improving surface roughness, throughout a low temperature anneal. We have measured these wires to have less than 1kOhm resistances by electron beam lithography, in a two point configuration. Using electron beam induced deposition we have successfully made four point contacts to measure the change in resistance due to annealing. We will present results on polymer templating, showing that the wires maintain their overall morphology with improved conductivities during low temp (200° C) annealing.