Induced Motion of Polymer Chains on Surfaces
James von Ehra, Robert E. Tuzun*, b, Donald W. Noidb, Bobby G. Sumpterb
aFirst author's affiliation: Zyvex LLC,
251 W. Renner Parkway, Suite 166, Richardson, TX 75080
bChemical and Analytical Sciences Division,
Oak Ridge National Laboratory, Oak Ridge, TN 37831-6197
This is an abstract
for a presentation given at the
Foresight Conference on Molecular Nanotechnology.
There will be a link from here to the full article when it is
available on the web.
Molecular manufacturing will require the movement of raw material
(consisting of small numbers of molecules) to be transported in a controlled
way between work zones. In order to accomplish this, Drexler, has proposed
a conveyer belt arrangement. In this work, we propose other methods to
create directional motion on a molecular surface and present simulation
results. In one method, a laser field is used to excite a vibrational mode
which then causes the molecule to move across the surface. In the other
method, the current from a nearby STM tip (which is modelled as a fixed
charge) interacts with a localized charge (for example, a charged substituent).
This interaction effectively lowers the barrier to surface transport
Chemical and Analytical Sciences Division,Oak Ridge National Laboratory, Oak Ridge, TN 37831-6197
Phone: (423) 574-4992;
Fax: (423) 576-5235