Patents by Inventor Peter T. Kazlas

Peter T. Kazlas 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).

  • Publication number: 20190312222
    Abstract: A light emitting device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a cathode, a layer comprising a material capable of transporting and injection electrons comprising an inorganic material, an emissive layer comprising quantum dots, a layer comprising a material capable of transporting holes, a layer comprising a hole injection material, and an anode. In certain embodiments, the hole injection material can be a p-type doped hole transport material. In certain preferred embodiments, quantum dots comprise semiconductor nanocrystals. In another aspect of the invention, there is provided a light emitting device wherein the device has an initial turn-on voltage that is not greater than 1240/?, wherein ? represents the wavelength (nm) of light emitted by the emissive layer. Other light emitting devices and a method are disclosed.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 10, 2019
    Inventors: ZHAOQUN ZHOU, PETER T. KAZLAS, MEAD MISIC, ZORAN POPOVIC, JOHN SPENCER MORRIS
  • Patent number: 10403690
    Abstract: A light emitting device comprising: a pair of electrodes; two or more light emitting elements disposed between the electrodes in a stacked arrangement, wherein a light emitting element comprises a layer comprising an emissive material, and a charge generation element disposed between adjacent light emitting elements in the stacked arrangement, the charge generation element comprising a first layer comprising an inorganic n-type semiconductor material, and a second layer comprising a hole injection material. A charge generation is also disclosed.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: September 3, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Zhaoqun Zhou, Peter T. Kazlas
  • Patent number: 10333090
    Abstract: A light emitting device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a cathode, a layer comprising a material capable of transporting and injection electrons comprising an inorganic material, an emissive layer comprising quantum dots, a layer comprising a material capable of transporting holes, a layer comprising a hole injection material, and an anode. In certain embodiments, the hole injection material can be a p-type doped hole transport material. In certain preferred embodiments, quantum dots comprise semiconductor nanocrystals. In another aspect of the invention, there is provided a light emitting device wherein the device has an initial turn-on voltage that is not greater than 1240/?, wherein ? represents the wavelength (nm) of light emitted by the emissive layer. Other light emitting devices and a method are disclosed.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 25, 2019
    Assignee: SAMSUNG RESEARCH AMERICA, INC.
    Inventors: Zhaoqun Zhou, Peter T. Kazlas, Mead Misic, Zoran Popovic, John Spencer Morris
  • Patent number: 10164205
    Abstract: A device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a first electrode and a second electrode, a layer comprising quantum dots disposed between the first electrode and the second electrodes, and a first interfacial layer disposed at the interface between a surface of the layer comprising quantum dots and a first layer in the device. In certain embodiments, a second interfacial layer is optionally further disposed on the surface of the layer comprising quantum dots opposite to the first interfacial layer. In certain embodiments, a device comprises a light-emitting device. Other light emitting devices and methods are disclosed.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: December 25, 2018
    Assignee: SAMSUNG RESEARCH AMERICA, INC.
    Inventors: Peter T. Kazlas, Zhaoqun Zhou, Yuhua Niu, Sang-Jin Kim, Benjamin S. Mashford
  • Patent number: 10056523
    Abstract: A method of making a device comprises forming a layer comprising quantum dots over a substrate including a first electrode, fixing the layer comprising quantum dots formed over the substrate, and exposing at least a portion of, and preferably all, exposed surfaces of the fixed layer comprising quantum dots to small molecules. The layer comprising quantum dots can be preferably fixed in the absence or substantial absence of oxygen. Also disclosed is a method of making a device comprises forming a layer comprising quantum dots over a substrate including a first electrode, exposing the layer comprising quantum dots to small molecules and light flux.
    Type: Grant
    Filed: November 13, 2016
    Date of Patent: August 21, 2018
    Assignee: SAMSUNG RESEARCH AMERICA, INC.
    Inventors: Peter T. Kazlas, John Spencer Morris, Robert J. Nick, Zoran Popovic, Matthew Stevenson, Jonathan S. Steckel
  • Publication number: 20180122873
    Abstract: A light emitting device comprising: a pair of electrodes; two or more light emitting elements disposed between the electrodes in a stacked arrangement, wherein a light emitting element comprises a layer comprising an emissive material, and a charge generation element disposed between adjacent light emitting elements in the stacked arrangement, the charge generation element comprising a first layer comprising an inorganic n-type semiconductor material, and a second layer comprising a hole injection material. A charge generation is also disclosed.
    Type: Application
    Filed: January 4, 2018
    Publication date: May 3, 2018
    Inventors: ZHAOQUN ZHOU, PETER T. KAZLAS
  • Patent number: 9929325
    Abstract: A lighting device including an emissive material comprising quantum dots and a liquid medium disposed within a sealed container with at least a portion of a light guiding member disposed within the sealed container. Products including a lighting device in accordance with the invention are also disclosed.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: March 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Gagan Mahan, Peter T. Kazlas
  • Publication number: 20180072908
    Abstract: An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle comprises a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition comprising a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle comprises a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial comprises semiconductor nanocrystals. Devices prepared from inks and methods of the invention are also described.
    Type: Application
    Filed: October 12, 2017
    Publication date: March 15, 2018
    Inventors: JOHN R. LINTON, PETER T. KAZLAS, CRAIG BREEN, SETH COE-SULLIVAN
  • Patent number: 9887375
    Abstract: One embodiment relates to a device comprises a pair of electrodes comprising an anode and a cathode; a layer comprising quantum dots disposed between the electrodes, wherein at least a portion of the quantum dots comprise a core comprising a first semiconductor material and an outer shell surrounding the core, the shell comprising a second semiconductor material, wherein the first semiconductor material confines holes better than electrons in the core and the second semiconductor material is permeable to electrons; and a first layer comprising a material capable of transporting and injecting electrons, the material comprising nanoparticles of a first inorganic semiconductor material, the first layer being disposed between the layer comprising quantum dots and the cathode, wherein the first layer and the cathode form an ohmic contact during operation of the device.
    Type: Grant
    Filed: November 19, 2016
    Date of Patent: February 6, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Zhaoqun Zhou, Peter T. Kazlas, Benjamin S. Mashford
  • Publication number: 20180019427
    Abstract: A device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a first electrode and a second electrode, a layer comprising quantum dots disposed between the first electrode and the second electrodes, and a first interfacial layer disposed at the interface between a surface of the layer comprising quantum dots and a first layer in the device. In certain embodiments, a second interfacial layer is optionally further disposed on the surface of the layer comprising quantum dots opposite to the first interfacial layer. In certain embodiments, a device comprises a light-emitting device. Other light emitting devices and methods are disclosed.
    Type: Application
    Filed: August 2, 2017
    Publication date: January 18, 2018
    Inventors: PETER T. KAZLAS, ZHAOQUN ZHOU, YUHUA NIU, SANG-JIN KIM, BENJAMIN S. MASHFORD
  • Publication number: 20180013088
    Abstract: A light emitting device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a cathode, a layer comprising a material capable of transporting and injection electrons comprising an inorganic material, an emissive layer comprising quantum dots, a layer comprising a material capable of transporting holes, a layer comprising a hole injection material, and an anode. In certain embodiments, the hole injection material can be a p-type doped hole transport material. In certain preferred embodiments, quantum dots comprise semiconductor nanocrystals. In another aspect of the invention, there is provided a light emitting device wherein the device has an initial turn-on voltage that is not greater than 1240/?, wherein ? represents the wavelength (nm) of light emitted by the emissive layer. Other light emitting devices and a method are disclosed.
    Type: Application
    Filed: July 14, 2017
    Publication date: January 11, 2018
    Inventors: ZHAOQUN ZHOU, PETER T. KAZLAS, MEAD MISIC, ZORAN POPOVIC, JOHN SPENCER MORRIS
  • Patent number: 9865659
    Abstract: A light emitting device comprising: a pair of electrodes; two or more light emitting elements disposed between the electrodes in a stacked arrangement, wherein a light emitting element comprises a layer comprising an emissive material; and a charge generation element disposed between adjacent light emitting elements in the stacked arrangement, the charge generation element comprising a first layer comprising an inorganic n-type semiconductor material, and a second layer comprising a hole injection material. A charge generation element is also disclosed.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: January 9, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Zhaoqun Zhou, Peter T. Kazlas
  • Patent number: 9859116
    Abstract: A method for preparing a sol-gel film is disclosed. The method comprises providing a sol-gel composition comprising one or more sol-gel film precursors and a crystallization aid, and processing the sol-gel composition by solution processing to form the sol-gel film. In certain embodiments, the sol-gel film comprises one or more metal oxides. A preferred crystallization aid includes triphenylphosphine oxide. A composition for making a sol-gel film, a sol-gel film, a device including a sol-gel film and a method for making such device are also disclosed.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: January 2, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yuhua Niu, Peter T. Kazlas
  • Patent number: 9815996
    Abstract: An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition comprising a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition including a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial includes semiconductor nanocrystals. Devices prepared from inks and methods of the invention are also described.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: November 14, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: John R. Linton, Peter T. Kazlas, Craig Breen, Seth Coe-Sullivan
  • Patent number: 9793505
    Abstract: A light emitting device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a cathode, a layer comprising a material capable of transporting and injection electrons comprising an inorganic material, an emissive layer comprising quantum dots, a layer comprising a material capable of transporting holes, a layer comprising a hole injection material, and an anode. In certain embodiments, the hole injection material can be a p-type doped hole transport material. In certain preferred embodiments, quantum dots comprise semiconductor nanocrystals. In another aspect of the invention, there is provided a light emitting device wherein the device has an initial turn-on voltage that is not greater than 1240/?, wherein ? represents the wavelength (nm) of light emitted by the emissive layer. Other light emitting devices and a method are disclosed.
    Type: Grant
    Filed: October 2, 2010
    Date of Patent: October 17, 2017
    Assignee: QD VISION, INC.
    Inventors: Zhaoqun Zhou, Peter T. Kazlas, Mead Misic, Zoran Popovic, John Spencer Morris
  • Patent number: 9755172
    Abstract: A device including an emissive material comprising quantum dots is disclosed. In one embodiment, the device includes a first electrode and a second electrode, a layer comprising quantum dots disposed between the first electrode and the second electrodes, and a first interfacial layer disposed at the interface between a surface of the layer comprising quantum dots and a first layer in the device. In certain embodiments, a second interfacial layer is optionally further disposed on the surface of the layer comprising quantum dots opposite to the first interfacial layer. In certain embodiments, a device comprises a light-emitting device. Other light emitting devices and methods are disclosed.
    Type: Grant
    Filed: November 19, 2016
    Date of Patent: September 5, 2017
    Assignee: QD VISION, INC.
    Inventors: Peter T. Kazlas, Zhaoqun Zhou, Yuhua Niu, Sang-Jin Kim, Benjamin S. Mashford
  • Patent number: 9722133
    Abstract: A method of processing quantum dots is disclosed. The method comprises applying energy to excite the quantum dots to emit light and placing the quantum dots under vacuum after excitation of the quantum dots. Also disclosed is a method of processing a component including quantum dots comprising applying energy to the component including quantum dots to excite the quantum dots to emit light; and placing the component including quantum dots under vacuum after excitation. A method for processing a device is further disclosed, the method comprising applying energy to the device to excite the quantum dots to emit light; and placing the device under vacuum after excitation of the quantum dots. A method for preparing a device is also disclosed. Quantum dots, component, and devices of the methods are also disclosed.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: August 1, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Jin Kim, Matthew Stevenson, Gagan Mahan, Peter T. Kazlas
  • Patent number: 9683122
    Abstract: An ink composition comprising a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a composition including one or more functional groups that are capable of being cross-linked is disclosed. An ink composition comprising a nanomaterial, a liquid vehicle, and scatterers is also disclosed. An ink composition including a nanomaterial and a liquid vehicle, wherein the liquid vehicle includes a perfluorocompound is further disclosed. A method for inkjet printing an ink including nanomaterial and a liquid vehicle with a surface tension that is not greater than about 25 dyne/cm is disclosed. In certain preferred embodiments, the nanomaterial includes semiconductor nanocrystals. Devices prepared from inks and methods of the invention are also described.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: June 20, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: John R. Linton, Peter T. Kazlas, Craig Breen, Seth Coe-Sullivan
  • Publication number: 20170167697
    Abstract: A mount for a color converting assembly includes a housing having a first pair of opposed walls and a second pair of opposed walls. The housing has a first opening at a first end thereof and a second opening at a second end thereof. A shelf extends inwardly from each of the walls at a point below the second end of the housing such that each wall extends upwardly beyond the shelf to the second end of the housing. The walls and shelf are formed of a reflective material.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 15, 2017
    Inventors: MATTHEW STEVENSON, JAMES ANTHONY CASCARANO, PETER T. KAZLAS
  • Patent number: 9680054
    Abstract: A component including a substrate, at least one layer including a color conversion material including quantum dots disposed over the substrate, and a layer including a conductive material (e.g., indium-tin-oxide) disposed over the at least one layer. (Embodiments of such component are also referred to herein as a QD light-enhancement substrate (QD-LES).) In certain preferred embodiments, the substrate is transparent to light, for example, visible light, ultraviolet light, and/or infrared radiation. In certain embodiments, the substrate is flexible. In certain embodiments, the substrate includes an outcoupling element (e.g., a microlens array). A film including a color conversion material including quantum dots and a conductive material is also provided. In certain embodiments, a component includes a film described herein. Lighting devices are also provided. In certain embodiments, a lighting device includes a film described herein.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: June 13, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seth Coe-Sullivan, Peter T. Kazlas