Patents – Alan J. Heeger
(1995-1999)

Heeger Page · Resources with Additional Information · Patents (1984-1994)


US 5,418,047   CONDUCTIVE ARTICLES OF INTRACTABLE POLYMERS  --  Heeger, Alan; et. al.; May 23, 1995
Conducting articles such as fibers, films, tapes and the like are fabricated from intractable conducting polymers such as polyacetylene. The articles are prepared by (a) forming a gel of a carrier polymer in a compatible solvent, (b) polymerizing, within the gel, a selected monomer, and (c) doping the article so provided. The articles are highly electrically conductive as well as mechanically quite strong.

US 5,504,323   DUAL FUNCTION CONDUCTING POLYMER DIODES   --  Heeger, Alan; Yu, Gang; April 2, 1996
Dual function diodes based on conjugated organic polymer active layers are disclosed. When positively biased the diodes function as light emitters. When negatively biased they are highly efficient photodiodes. Methods of preparation and use of these diodes in displays and input/output devices are also disclosed.

US 5,569,708  SELF-DOPED POLYMERS  --  Heeger, Alan; Wudl, Fred; October 29, 1996
A self-doped conducting polymer having along its backbone a .pi.-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided, as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.

US 5,589,565   WATER-SOLUBLE CONDUCTING POLYPHENYLENE VINYLENE POLYMERS   --  Heeger, Alan; Wudl, Fred; December 31, 1996
A self-doped conducting polymer having along its backbone a .pi.-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided, as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.

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US 5,741,442   OPTICAL LIMITING MATERIALS   --  Heeger, Alan; et.al; April 21, 1998
(The U.S. Government has rights in this invention pursuant to … contract … awarded by the Department of Energy)
Optical limiting materials. Methanofullerenes, fulleroids and/or other fullerenes chemically altered for enhanced solubility, in liquid solution, and in solid blends with transparent glass (SiO.sub.2) gels or polymers, or semiconducting (conjugated) polymers, are shown to be useful as optical limiters (optical surge protectors). The nonlinear absorption is tunable such that the energy transmitted through such blends saturates at high input energy per pulse over a wide range of wavelengths from 400-1100 nm by selecting the host material for its absorption wavelength and ability to transfer the absorbed energy into the optical limiting composition dissolved therein. This phenomenon should be generalizable to other compositions than substituted fullerenes

US 5,760,169   SELF-DOPED POLYMERS  --  Heeger, Alan; Wudl, Fred; June 2, 1998
A self-doped conducting polymer having along its backbone a .pi.-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided, as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.

US 5,863,981   ELECTRICALLY CONDUCTING WATER-SOLUBLE SELF-DOPING POLYANILINE POLYMERS AND THE AQUEOUS SOLUTIONS THEREOF  --   Heeger, Alan; Wudl, Fred; January 26, 1999
A self-doped conducting polymer having along its backbone a .pi.-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided, as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.

US 5,891,968  METHOD OF MAKING SELF-DOPED ZWITTERIONIC HETEROCYCLIC POLYMERS  --  Heeger, Alan; Wudl, Fred; April 6, 1999
A self-doped conducting polymer having along its backbone a .pi.-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided. as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.

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