Patents by Inventor John Robert Reynolds
John Robert Reynolds has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11977309Abstract: A variety of anodically-coloring electrochromic molecules are provided. In particular, anodically-coloring electrochromic molecules and devices are provided that allow for tuning the absorption bands in the cation state across the visible spectrum while demonstrating little to no coloring or visible absorption in the neutral state, resulting in high-contrast devices. Electrochromic devices are also provided, as well as methods of making the devices and molecules, and methods of use thereof.Type: GrantFiled: November 20, 2018Date of Patent: May 7, 2024Assignee: Georgia Tech Research CorporationInventors: John Robert Reynolds, Dylan T. Christiansen
-
Patent number: 11384198Abstract: Embodiments of the invention are directed to yellow/orange-to-transmissive conjugated polymers, a method to prepare the yellow/orange conjugated polymers, and an electrochromic and/or electroluminescent device comprising the neutral state yellow/orange conjugated polymers as one of a plurality of primary subtractive colored conjugated polymers. The yellow/orange conjugated polymers show enhanced redox stability and can have a (D2Arz)n structure with a dioxyheterocycle repeating unit or a (DArz)n structure with a dioxythiophene monomer that has at least one substituted carbon ? to an oxygen of the monomer; and where the one to three Ar groups have at least one carbon ? to the carbon attached to a D unit substituted that has at least 5 atoms in the substituent. The yellow/orange conjugated polymers show enhanced redox stability. The yellow/orange conjugated polymers are prepared by cross-condensation reactions.Type: GrantFiled: August 22, 2017Date of Patent: July 12, 2022Assignee: GEORGIA TECH RESEARCH CORPORATIONInventors: John Robert Reynolds, Kangli Cao, Anna M. Osterholm, Dwanleen E. Shen, Dylan Thomas Christiansen
-
Publication number: 20210111346Abstract: Multistage side-chain conjugated polymers (CPs) have a conjugated backbone from a multiplicity of repeating unit where at least one of the repeating units has a multistage side-chain. The repeating unit has a conjugated backbone portion and a multistage side-chain, which has one or more responsive functionalities. Responsive functionalities include a photo- or thermal-cleavable portion connected by a first linker between the backbone portion and the cleavable portion, and a chemically activatable solubilizing portion having an activatable functionality that can undergo a chemical reaction to provide aqueous solubility. The multistage side-chain CP is prepared in an organic solution and converted to an aqueous soluble activated multistage side-chain CP for deposited on a substrate. Upon cleavage, a multistage side-chain residue is liberated and removed from an insoluble core CP film that can be part of an organic electronic device.Type: ApplicationFiled: March 30, 2018Publication date: April 15, 2021Inventors: JOHN ROBERT REYNOLDS, BRIAN J. SCHMATZ
-
Patent number: 10882949Abstract: Conjugated copolymers are provided that can be processed in a variety of solvents and can be rendered solvent-resistant when needed. The copolymers can be solution cast from nonpolar, polar, and aqueous solvents. After casting a polymer layer, the polymer can be rendered solvent resistant, thereby providing for improved stability and multi-layer processing and in electrochromic devices where the polymer layer is in contact with a nonpolar or polar solvent or electrolyte. Methods of making the copolymers are also provided, as well as methods of solution casting the polymers from a variety of nonpolar organic, polar, and aqueous solvents. Electrochromic devices are demonstrated having electrode(s) containing these polymers, including a variety of supercapacitor devices capable of using organic, biological, and aqueous electrolytes. Some of these electrodes demonstrate superfast switching and large power densities, showing promise for applications in supercapacitor batteries.Type: GrantFiled: July 16, 2016Date of Patent: January 5, 2021Assignee: Georgia Tech Research CorporationInventors: John Robert Reynolds, Rayford H. Bulloch, Anna M. Osterholm, James F. Ponder, Jr.
-
Publication number: 20200393732Abstract: A variety of anodically-coloring electrochromic molecules are provided. In particular, anodically-coloring electrochromic molecules and devices are provided that allow for tuning the absorption bands in the cation state across the visible spectrum while demonstrating little to no coloring or visible absorption in the neutral state, resulting in high-contrast devices. Electrochromic devices are also provided, as well as methods of making the devices and molecules, and methods of use thereof.Type: ApplicationFiled: November 20, 2018Publication date: December 17, 2020Inventors: John Robert Reynolds, Dylan T. Christiansen
-
Publication number: 20190218338Abstract: Embodiments of the invention are directed to yellow/orange-to-transmissive conjugated polymers, a method to prepare the yellow/orange conjugated polymers, and an electrochromic and/or electroluminescent device comprising the neutral state yellow/orange conjugated polymers as one of a plurality of primary subtractive colored conjugated polymers. The yellow/orange conjugated polymers show enhanced redox stability and can have a (D2Arz)n structure with a dioxyheterocycle repeating unit or a (DArz)n structure with a dioxythiophene monomer that has at least one substituted carbon ? to an oxygen of the monomer; and where the one to three Ar groups have at least one carbon ? to the carbon attached to a D unit substituted that has at least 5 atoms in the substituent. The yellow/orange conjugated polymers show enhanced redox stability. The yellow/orange conjugated polymers are prepared by cross-condensation reactions.Type: ApplicationFiled: August 22, 2017Publication date: July 18, 2019Inventors: JOHN ROBERT REYNOLDS, KANGLI CAO, ANNA M. OSTERHOLM, DWANLEEN E. SHEN, DYLAN THOMAS CHRISTIANSEN
-
Patent number: 10294416Abstract: Yellow electrochromic polymers (ECPs) are prepared that display a yellow neutral state and a highly transmissive oxidized state. The ECPs are copolymers where a dyad of dioxyhetereocyclic repeating unis alternate with a monad of an aromatic repeating unit. An alternate yellow ECP has an oxidation potential of 450 mV or less and is an alternating copolymer of an acyclic dioxythiophene (AcDOT) or a propylene dioxythiophene (ProDOT) with an aromatic repeating unit that has an electron donating substituent. The yellow ECPs can be processed from solution for electrochromic devices.Type: GrantFiled: May 28, 2015Date of Patent: May 21, 2019Assignee: GEORGIA TECH RESEARCH CORPORATIONInventors: Justin Adam Kerszulis, John Robert Reynolds, Aubrey Lynn Dyer
-
Patent number: 10294326Abstract: Copolymers including dioxythiophene repeating units and no acceptor units allow the formation of electrochromic polymers (ECPs) with vivid neutral state colors and very colorless oxidized states that can be switched rapidly. The dioxythiophene repeating units can included in sequences where all of one type of dioxythiophene is included exclusively as isolated dyads or triads within the copolymer, or the copolymer can be an alternating copolymer with propylenedioxythiophene units. Other non-acceptor units can be included in the copolymers. The copolymers are rendered organic solvent soluble by alkyl substituents on repeating units. The inclusion of sterically encumbered acyclic dioxythiophene (AcDOT) units promotes red color while unsubstituted ethylenedioxythiophene (EDOT) units promote blue colors, and their respective content can be manipulated to achieve a desired neutral state color. Soluble copolymers comprising at least 50% EDOT repeating units can be used in supercapacitor applications.Type: GrantFiled: May 22, 2015Date of Patent: May 21, 2019Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATEDInventors: John Robert Reynolds, Michael R. Craig, Aubrey Lynn Dyer, Justin Adam Kerszulis
-
Publication number: 20180223035Abstract: Conjugated copolymers are provided that can be processed in a variety of solvents and can be rendered solvent-resistant when needed. The copolymers can be solution cast from nonpolar, polar, and aqueous solvents. After casting a polymer layer, the polymer can be rendered solvent resistant, thereby providing for improved stability and multi-layer processing and in electrochromic devices where the polymer layer is in contact with a nonpolar or polar solvent or electrolyte. Methods of making the copolymers are also provided, as well as methods of solution casting the polymers from a variety of nonpolar organic, polar, and aqueous solvents. Electrochromic devices are demonstrated having electrode(s) containing these polymers, including a variety of supercapacitor devices capable of using organic, biological, and aqueous electrolytes. Some of these electrodes demonstrate superfast switching and large power densities, showing promise for applications in supercapacitor batteries.Type: ApplicationFiled: July 16, 2016Publication date: August 9, 2018Inventors: JOHN ROBERT REYNOLDS, RAYFORD H. BULLOCH, ANNA M. OSTERHOLM, JAMES F. PONDER, Jr.
-
Publication number: 20170267920Abstract: Yellow electrochromic polymers (ECPs) are prepared that display a yellow neutral state and a highly transmissive oxidized state. The ECPs are copolymers where a dyad of dioxyhetereocyclic repeating unis alternate with a monad of an aromatic repeating unit. An alternate yellow ECP has an oxidation potential of 450 mV or less and is an alternating copolymer of an acyclic dioxythiophene (AcDOT) or a propylene dioxythiophene (ProDOT) with an aromatic repeating unit that has an electron donating substituent. The yellow ECPs can be processed from solution for electrochromic devices.Type: ApplicationFiled: May 28, 2015Publication date: September 21, 2017Inventors: Justin Adam Kerszulis, John Robert Reynolds, Aubrey Lynn Dyer
-
Publication number: 20170267811Abstract: Copolymers including dioxythiophene repeating units and no acceptor units allow the formation of electrochromic polymers (ECPs) with vivid neutral state colors and very colorless oxidized states that can be switched rapidly. The dioxythiophene repeating units can included in sequences where all of one type of dioxythiophene is included exclusively as isolated dyads or triads within the copolymer, or the copolymer can be an alternating copolymer with propylenedioxythiophene units. Other non-acceptor units can be included in the copolymers. The copolymers are rendered organic solvent soluble by alkyl substituents on repeating units. The inclusion of sterically encumbered acyclic dioxythiophene (AcDOT) units promotes red color while unsubstituted ethylenedioxythiophene (EDOT) units promote blue colors, and their respective content can be manipulated to achieve a desired neutral state color. Soluble copolymers comprising at least 50% EDOT repeating units can be used in supercapacitor applications.Type: ApplicationFiled: May 22, 2015Publication date: September 21, 2017Inventors: John Robert Reynolds, Michael R. Craig, Aubrey Lynn Dyer, Justin Adam Kerszulis
-
Patent number: 8564048Abstract: Embodiments of the invention relate to field effect transistors. The field effect transistor includes a gate electrode for providing a gate field, a first electrode including a conductive material having a low carrier density and a low density of electronic states, a second electrode, and a semiconductor. Contact barrier modulation includes barrier height lowering of a Schottky contact between the first electrode and the semiconductor. In some embodiments of the invention, a vertical field effect transistor employs an electrode comprising a conductive material with a low density of states such that the transistors contact barrier modulation comprises barrier height lowering of the Schottky contact between the electrode with a low density of states and the adjacent semiconductor by a Fermi level shift.Type: GrantFiled: June 21, 2012Date of Patent: October 22, 2013Assignee: University of Florida Research Foundation, Inc.Inventors: Andrew Gabriel Rinzler, Bo Liu, Mitchell Austin McCarthy, John Robert Reynolds, Franky So
-
Publication number: 20120256175Abstract: Embodiments of the invention relate to vertical field effect transistor that is a light emitting transistor. The light emitting transistor incorporates a gate electrode for providing a gate field, a first electrode comprising a dilute nanotube network for injecting a charge, a second electrode for injecting a complementary charge, and an electroluminescent semiconductor layer disposed intermediate the nanotube network and the electron injecting layer. The charge injection is modulated by the gate field. The holes and electrons, combine to form photons, thereby causing the electroluminescent semiconductor layer to emit visible light. In other embodiments of the invention a vertical field effect transistor that employs an electrode comprising a conductive material with a low density of states such that the transistors contact barrier modulation comprises barrier height lowering of the Schottky contact between the electrode with a low density of states and the adjacent semiconductor by a Fermi level shift.Type: ApplicationFiled: June 21, 2012Publication date: October 11, 2012Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Andrew Gabriel Rinzler, Bo Liu, Mitchell Austin McCarthy, John Robert Reynolds, Franky So
-
Patent number: 8232561Abstract: Embodiments of the invention relate to vertical field effect transistor that is a light emitting transistor. The light emitting transistor incorporates a gate electrode for providing a gate field, a first electrode comprising a dilute nanotube network for injecting a charge, a second electrode for injecting a complementary charge, and an electroluminescent semiconductor layer disposed intermediate the nanotube network and the electron injecting layer. The charge injection is modulated by the gate field. The holes and electrons, combine to form photons, thereby causing the electroluminescent semiconductor layer to emit visible light. In other embodiments of the invention a vertical field effect transistor that employs an electrode comprising a conductive material with a low density of states such that the transistors contact barrier modulation comprises barrier height lowering of the Schottky contact between the electrode with a low density of states and the adjacent semiconductor by a Fermi level shift.Type: GrantFiled: September 10, 2008Date of Patent: July 31, 2012Assignee: University of Florida Research Foundation, Inc.Inventors: Andrew Gabriel Rinzler, Bo Liu, Mitchell Austin McCarthy, John Robert Reynolds, Franky So
-
Publication number: 20100237336Abstract: Embodiments of the invention relate to vertical field effect transistor that is a light emitting transistor. The light emitting transistor incorporates a gate electrode for providing a gate field, a first electrode comprising a dilute nanotube network for injecting a charge, a second electrode for injecting a complementary charge, and an electroluminescent semiconductor layer disposed intermediate the nanotube network and the electron injecting layer. The charge injection is modulated by the gate field. The holes and electrons, combine to form photons, thereby causing the electroluminescent semiconductor layer to emit visible light. In other embodiments of the invention a vertical field effect transistor that employs an electrode comprising a conductive material with a low density of states such that the transistors contact barrier modulation comprises barrier height lowering of the Schottky contact between the electrode with a low density of states and the adjacent semiconductor by a Fermi level shift.Type: ApplicationFiled: September 10, 2008Publication date: September 23, 2010Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Andrew Gabriel Rinzler, Bo Liu, Mitchell Austin McCarthy, John Robert Reynolds, Franky So
-
Patent number: 7649076Abstract: A method to prepare halogen end-capped polypyrroles, polyfurans or copolymeric pyrroles and furans is presented that readily occurs in a liquid state as well as a solid state without the need of a catalyst from a dihalopyrrole monomer, dihalofuran monomer, or a mixture of monomers. The polymerization mixture can be modified to include a monohalo-monomer for the introduction of a specific end-group or a polyhalo-monomer to form a branched polymer or network. An initiating species can be included in the polymerization mixture to avoid an induction period or to commence the polymerization process on demand. The electroactive polymers can be formed as a bulk material, a coating, or as a film.Type: GrantFiled: May 18, 2007Date of Patent: January 19, 2010Assignee: University of Florida Research Foundation, Inc.Inventors: John Robert Reynolds, Ryan Michael Walczak
-
Publication number: 20070270571Abstract: A method to prepare halogen end-capped polypyrroles, polyfurans or copolymeric pyrroles and furans is presented that readily occurs in a liquid state as well as a solid state without the need of a catalyst from a dihalopyrrole monomer, dihalofuran monomer, or a mixture of monomers. The polymerization mixture can be modified to include a monohalo-monomer for the introduction of a specific end-group or a polyhalo-monomer to form a branched polymer or network. An initiating species can be included in the polymerization mixture to avoid an induction period or to commence the polymerization process on demand. The electroactive polymers can be formed as a bulk material, a coating, or as a film.Type: ApplicationFiled: May 18, 2007Publication date: November 22, 2007Inventors: John Robert Reynolds, Ryan Michael Walczak