Abstract: The invention relates to polymers and oligomers, methods of their synthesis, and electronic devices comprising them.

Abstract: A spin driven resistor comprising a magnetic body whose resistance increases due to resonance when subjected to an externally applied magnetic field while in the presence of an externally applied electromagnetic field is presented. The spin driven resistor has applications in a variety of spintronic devices including read heads and detectors that are very fast and operate and low power. The spin driven resistor may also be used to modulate spin value, spin tunnel junction, spin-LED, and spin-transistor devices by exposing device to an electromagnetic field and a magnetic field.

Abstract: In general terms, the present invention includes a light emitting polymeric material the light emitting polymeric material capable of producing electroluminescence upon being provided with a flow of electrons, the light emitting polymeric material comprising a plurality of polymeric chains comprising polymeric chains each having substituent moieties of sufficient number and size and extending from the polymeric chain and about a substantial portion of the circumference about the polymer chain so as to maintain the polymeric chains in a sufficiently deaggregated state (referred to herein as a “strapped” polymer), so as to substantially prevent the redshifting of the electroluminescence and the lowering of light emission efficiency of the electroluminescence.

Abstract: In general terms, the present invention includes a light emitting polymeric material the light emitting polymeric material capable of producing electroluminescence upon being provided with a flow of electrons, the light emitting polymeric material comprising a plurality of polymeric chains comprising polymeric chains each having substituent moieties of sufficient number and size and extending from the polymeric chain and about a substantial portion of the circumference about the polymer chain so as to maintain the polymeric chains in a sufficiently deaggregated state (referred to herein as a “strapped” polymer), so as to substantially prevent the redshifting of the electroluminescence and the lowering of light emission efficiency of the electroluminescence.

Abstract: This invention relates to organic based spintronic devices, and electronic devices comprising them, including spin valves, spin tunnel junctions, spin transistors and spin light-emitting devices. New polymer-, organic- and molecular-based electronic devices in which the electron spin degree of freedom controls the electric current to enhance device performance. Polymer-, organic-, and molecular-based spintronic devices have enhanced functionality, ease of manufacture, are less costly than inorganic ones. The long spin coherence times due to the weak spin-orbit interaction of carbon and other low atomic number atoms that comprise organic materials make them ideal for exploiting the concepts of spin quantum devices. The hopping mechanism of charge transport that dominates in semiconducting polymers (vs. band transport in crystalline inorganic semiconductors) enhances spin-magneto sensitivity and reduces the expected power loss.

Abstract: The present invention includes methods for fabricating polymer light emitting devices by screen-printing. These light emitting devices use silver paste as the top electrode, eliminating the use of evaporated low work function metal. This is made possible by the presence of a buffer layer such as the sulfonated polyaniline layer in the structure of SCALE devices. These devices allow a very inexpensive and fast means to form stable top electrodes for large-scale polymer light emitting device fabrication.

Abstract: The present invention includes methods for fabricating polymer light emitting devices by lamination. The invention also includes methods for fabricating electroluminescent polymer devices and electroluminescent polymer systems, and machines or instruments using those aspects of the invention.

Abstract: This invention relates to organic based spintronic devices, and electronic devices comprising them, including spin valves, spin tunnel junctions, spin transistors and spin light-emitting devices. New polymer-, organic- and molecular-based electronic devices in which the electron spin degree of freedom controls the electric current to enhance device performance. Polymer-, organic-, and molecular-based spintronic devices have enhanced functionality, ease of manufacture, are less costly than inorganic ones. The long spin coherence times due to the weak spin-orbit interaction of carbon and other low atomic number atoms that comprise organic materials make them ideal for exploiting the concepts of spin quantum devices. The hopping mechanism of charge transport that dominates in semiconducting polymers (vs. band transport in crystalline inorganic semiconductors) enhances spin-magneto sensitivity and reduces the expected power loss.

Abstract: The invention relates to polymers and oligomers, methods of their synthesis, and electronic devices comprising them.

Abstract: The present invention includes infrared emitting materials and infrared emitting devices. The present invention demonstrates 1.54 micron infrared PL and EL emission from an organic complex. This provides a very simple way to obtain a light source at 1.54 micron wavelength that may be both optically and electrically pumped.

Abstract: Color-variable light-emitting devices which are capable of generating two independent colors, even at room temperature. The devices comprise a layer of at least one active electroluminescent polymer. This electroluminescent polymer may be accompanied by one or two redox-mediating polymer layers. The redox polymer layer(s) modify the charge injection and transport properties such that the device may be operated under both forward and reverse bias.

Abstract: In general terms, the present invention includes a light emitting polymeric material, the polymeric material comprising: (a) an electron transporting polymer; the electron transporting polymer in contact with (b) an electron blocking polymer, the electron blocking polymer incorporating a network electrode polymer. Such devices may be bilayer or multilayer devices, in accordance with arrangements known in the art. Likewise, the source of electrical current may be from any appropriate source having the electrical characteristics sufficient to and appropriate for the desired device make-up and application.

Abstract: In general terms, the method of the present invention is one for providing an anodic coating to a member having a metal surface being subject to oxidation. In broadest terms, the method comprises the steps of: (a) obtaining a member having a ferrous metal surface (i.e. the term "ferrous" intended as meaning containing iron without regard to oxidation state), the metal surface having one or more layer(s) of oxidized metal; (b) removing the layer(s) of oxidized metal from the ferrous metal surface; and (c) depositing one or more layer(s) of an emeraldine base polyaniline polymer onto the ferrous metal surface.

Abstract: In general terms the present invention includes light emitting polymeric materials and light emitting devices made therefrom. The present invention also includes light emitting devices incorporating light emitting polymeric materials of the present invention.

Abstract: Light emitting bipolar devices consist of an electroluminescent organic light emitting material sandwiched between two layers of insulating material each of which is in contact with an electrode. The devices operate with AC voltage at voltages of less than twenty four volts and in some instances at less than five volts. Under AC driving, the device produces modulated light output that can be frequency or amplitude modulated. Under DC driving, the device operates in both forward and reverse bias.

Abstract: The present invention relates to a corrosion resistant metal article which comprises: (a) a metal body normally prone to corrosion when subjected to potentially corrosive conditions; and (b) a coating of neutral, undoped polyaniline in the emeraldine base form on a portion of the metal body (e.g., a side coating or undercoating) of the neutral, undoped polyaniline in the emeraldine base form on the metal body, where the distance (for example, not more than about one centimeter) between coated and uncoated portions of the metal is effective to protect the uncoated portion of the metal as well as the coated portion.

Abstract: The invention presents a vanadium tetracyanoethylene solvent complex for electromagnetic field shielding, and a method for blocking low frequency and magnetic fields using these vanadium tetracyanoethylene compositions. The compositions of the invention can be produced at ambient temperature and are light weight, low density and flexible. The materials of the present invention are useful as magnetic shields to block low frequency fields and static fields, and for use in cores in transformers and motors.

Abstract: Light-emitting bipolar devices consist of a light-emitter formed from an electroluminescent organic light-emitting material in contact with an insulating material. The light emitter is in contact with two electrodes that are maintained in spaced apart relation with each other. The light emitter can be formed as an integral mixture of light emitting materials and insulating materials or as separate layers of light-emitting and insulating materials. The devices operate with AC voltage of less than twenty-four volts and in some instances at less than five volts. Under AC driving, the devices produce modulated light output that can be frequency or amplitude modulated. Under DC driving, the devices operate in both forward and reverse bias.

Abstract: A method of providing electronic shielding comprising providing a layer of a polyaniline composition on the object to be shielded, whereby the entrance and egress of electromagnetic radiation is prevented. Also presented herein is a method of changing the absorption by a polyaniline composition of electromagnetic radiation by modifying the chemical structure and crystallinographic order of the polyaniline composition, wherein said composition comprises a composition of the formula ##STR1## where y can be equal to or greater than zero, and R.sup.1 and R.sup.2 are independently selected from the group consisting of --H, --OCH.sub.3, --F, --Cl, --Br, --I, --NR.sup.3.sub.2, --NHCOR.sup.3, --OH, --O, --SR.sup.3, --OR.sup.3, --OCOR.sup.3, --NO.sub.2, --COOH, --COOR.sup.3, --R.sup.3 SO.sub.3 H, --COR.sup.3, --CHO, and --CN, where R.sup.3 is a C.sub.1 to C.sub.8 alkyl, aryl, or aralkyl group.

Abstract: A method of providing electronic shielding comprising providing a layer of a polyaniline composition on the object to be shielded, whereby the entrance and egress of electromagnetic radiation is prevented. Also presented herein is a method of changing the absorption by a polyaniline composition of electromagnetic radiation by modifying the chemical structure and crystallinographic order of the polyaniline composition, wherein said composition comprises a composition of the formula ##STR1## where y can be equal to or greater than zero, and R.sup.1 and R.sup.2 are independently selected from the group consisting of --H, --OCH.sub.3, --F, --Cl, --Br, --I, --NR.sup.3.sub.2, --NHCOR.sup.3, --OH, --O, --SR.sup.3, --OR.sup.3, --OCOR.sup.3, --NO.sub.2, --COOH, --COOR.sup.3, --R.sup.3 SO.sub.3 H, --COR.sup.3, --CHO, and --CN, where R.sup.3 is a C.sub.1 to C.sub.8 alkyl, aryl, or aralkyl group.