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Nanotechnology sometimes involves mixing something very small
into a larger, more conventional system. For example, mixing
carbon nanotubes into a conventional polymer gives it added
strength. Or, using a carbon nanotube as the channel between
two larger, source-drain contacts creates a transistor with
improved channel mobility. But simulating such systems becomes
a huge challenge. The smaller parts of the system must be
solved with great accuracy–for example, by simulating each
atom within a carbon nanotube. But the same approach can't
possibly be applied to the larger system–for example, to each
atom in the thousands of polymer molecules in a realistic
sample–or the whole problem would be too big to solve!
Multi-scale methods attempt to solve the problem by stitching
together smaller domains (where atomistic models apply) and
larger domains (where continuum models apply) into a coherent
Learn more about multi-scale methods from the resources on
this site, listed below.
Towards Multi-Scale Modeling of Carbon Nanotube Transistors
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20 Sep 2006 | Publications | Contributor(s): Jing Guo, Supriyo Datta, Mark Lundstrom, M. P. Anantram
Multiscale simulation approaches are needed in order to address scientific and technological questions in the rapidly developing field of carbon nanotube electronics. In this paper, we describe …
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