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<< Friday, April 05, 2013 >>

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Molecular-Scale Transistors and Polymer-Based Memory Devices

Seminar: Solid State Technology and Devices | April 5 | 1-2 p.m. | 521 Cory Hall

Prof. Takhee Lee, Seoul National University, Korea

Electrical Engineering and Computer Sciences (EECS)

The idea of utilizing individual molecules as the electronic components in
future ultrahigh-density electronic devices has generated tremendous
attention. Obtaining transistor action from molecular orbital control has
been the outstanding challenge of the field of molecular electronics nearly
since its inception. In this talk, I will explain a direct electrostatic
modulation of orbitals in a molecular transistor configuration, with both
effectivegate control and enhanced resonant coupling of the orbitals to the
source and drain electrodes. I will also explain recently developed
understanding on the electrical transport characteristics through various
types of molecular junctions on flat or flexible substrates. In the second
part of this talk, I will present a summary on general characteristics of
the materials, device structures, and switching mechanisms used in organic
resistive non-volatile memory devices. Strategies for performance
enhancement, integration, and advanced architectures in these devices will
be presented. And, if time is allowed, I will briefly discuss other research
results on nanoscale logic circuits and graphene-electrode optoelectronic