Bistable molecular mechanical devices with a middle rotating segment activated by an electric field for electronic switching, gating, and memory applications
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United States of America Patent
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Jan 6, 2004
Issued Date -
N/A
app pub date -
Apr 30, 2001
filing date -
Dec 14, 2000
priority date (Note) -
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Abstract
A molecular system is provided for electric field activated switches, such as a crossed-wire device or a pair of electrodes to which the molecular system is linked by linking moieties. The crossed-wire device comprises a pair of crossed wires that form a junction where one wire crosses another at an angle other than zero degrees and at least one connector species connecting the pair of crossed wires in the junction. The connector species comprises the molecular system, which has an electric field induced band gap change, and thus a change in its electrical conductivity, that occurs via one a molecular conformation change, based on a rotor/stator construction of the molecular system, involving a rotating portion (rotor) connected between to stationary portions (stators). Nanometer-scale reversible electronic switches are thus provided that can be assembled easily to make cross-bar circuits, which provide memory, logic, and communication functions.
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