The molecular transistor is treated as an FET and electrostatic screening length, mechanisms of current modulation, and space charge contribution due to the current flow are evaluated semi-quantitatively, in order to compare the potential of the molecular transistor, as a logic element, with more familiar semiconductor-based field-effect transistors. It will be shown that a single resonant level is inadequate for achieving a large on-off ratio concomitant with high performance, leading to the concept of using molecules to design an electronic filter.
By: Paul Solomon and Cherie R. Kagan
Published in: RC23137 in 2004
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