Molecule-based microelectronic devices

Details Molecule-based microelectronic devices Molecule-based microelectronic devices

1989-06-21

1991-07-23

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 90, 422 97, 422 98, 436151, 436806, 324 715, 324438, 204433, 204435, 204416, 204418, G01N 2700

Patent

active

050341928

ABSTRACT:
Several types of new microelectronic devices including diodes, transistors, sensors, surface energy storage elements, and light-emitting devices are disclosed. The properties of these devices can be controlled by molecular-level changes in electroactive polymer components. These polymer components are formed from electrochemically polymerizable material whose physical properties change in response to chemical changes, and can be used to bring about an electrical connection between two or more closely spaced microelectrodes. Examples of such materials include polypyrrole, polyaniline, and polythiophene, which respond to changes in redox potential. Each electrode can be individually addressed and characterized electrochemically by controlling the amount and chemical composition of the functionalizing polymer. Sensitivity of the devices may be increased by decreasing separations between electrodes as well as altering the chemical environment of the electrode-confined polymer. These very small, specific, sensitive devices provide means for interfacing electrical and chemical systems while consuming very little power.

REFERENCES:
patent: 3905889 (1975-09-01), Macur et al.
patent: 3923627 (1975-12-01), Niedrach et al.
patent: 4442422 (1984-04-01), Murata et al.
patent: 4444892 (1984-04-01), Malmros
patent: 4461691 (1984-07-01), Frank

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