知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

19 条记录 (耗时 0.028 秒)

    COMPOSITIONS AND METHODS INCLUDING DEPOSITING NANOMATERIAL
    2.
    发明申请
    COMPOSITIONS AND METHODS INCLUDING DEPOSITING NANOMATERIAL 审中-公开

    公开(公告)号：US20190292394A1

    公开(公告)日：2019-09-26

    申请号：US16440322

    申请日：2019-06-13

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： John R. Linton ,  Peter Kazlas ,  Craig Breen ,  Seth Coe-Sullivan

    IPC分类号： C09D11/52 ,  B41J2/21 ,  C09K11/88 ,  C09K11/02 ,  H01L33/06 ,  C09D11/326 ,  C09D7/40 ,  C09D11/38

    摘要： 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.

    Semiconductor nanocrystals, methods for making same, compositions, and products
    4.
    发明授权
    Semiconductor nanocrystals, methods for making same, compositions, and products 有权

    公开(公告)号：US10553750B2

    公开(公告)日：2020-02-04

    申请号：US16287830

    申请日：2019-02-27

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Wenhao Liu ,  Craig Breen ,  Seth Coe-Sullivan

    IPC分类号： H01L33/06 ,  C09D11/52 ,  C09K11/02 ,  C09K11/56 ,  C09K11/86 ,  H01L33/00 ,  H01L33/28 ,  C09K11/88 ,  H01L33/50 ,  B82Y20/00

    摘要： A semiconductor nanocrystal characterized by having a solid state photoluminescence external quantum efficiency at a temperature of 90° C. or above that is at least 95% of the solid state photoluminescence external quantum efficiency of the semiconductor nanocrystal at 25° C. is disclosed. A semiconductor nanocrystal having a multiple LO phonon assisted charge thermal escape activation energy of at least 0.5 eV is also disclosed. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 590 nm to 650 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 5.5. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 545 nm to 590 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 7. A semiconductor nanocrystal capable of emitting light with a maximum peak emission at a wavelength in a range from 495 nm to 545 nm characterized by an absorption spectrum, wherein the absorption ratio of OD at 325 nm to OD at 450 nm is greater than 10. A composition comprising a plurality of semiconductor nanocrystals wherein the solid state photoluminescence efficiency of the composition at a temperature of 90° C. or above is at least 95% of the solid state photoluminescence efficiency of the composition 25° C. is further disclosed. A method for preparing semiconductor nanocrystals comprises introducing one or more first shell chalcogenide precursors and one or more first shell metal precursors to a reaction mixture including semiconductor nanocrystal cores, wherein the first shell chalcogenide precursors are added in an amount greater than the first shell metal precursors by a factor of at least about 2 molar equivalents and reacting the first shell precursors at a first reaction temperature of at least 300° C. to form a first shell on the semiconductor nanocrystal cores. Populations, compositions, components and other products including semiconductor nanocrystals of the invention are disclosed. Populations, compositions, components and other products including semiconductor nanocrystals made in accordance with any method of the invention is also disclosed.

    Lighting systems and devices including same
    5.
    发明授权
    Lighting systems and devices including same 有权

    公开(公告)号：US10359555B2

    公开(公告)日：2019-07-23

    申请号：US15948755

    申请日：2018-04-09

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Seth Coe-Sullivan ,  John R. Linton ,  Daniel Cohen ,  John E. Ritter

    IPC分类号： G02F1/13357 ,  F21V8/00

    摘要： A lighting system is disclosed. The lighting system comprises at least one light source comprising a light emitting diode (LED) and one or more phosphors optically coupled to the LED to convert at least a portion of original light emitted by the LED to provide a modified LED light having a first predetermined spectral output, and an optical material that is optically coupled to at least a portion of a surface of a light guide plate and optically coupled to receive at least a portion of the modified LED light and to convert at least a portion of the modified LED light to at least one predetermined wavelength to provide modified light having a second predetermined spectral output, wherein the optical material comprises one or more types of quantum confined semiconductor nanoparticle. A device including a lighting system is also disclosed.

    Quantum dot light enhancement substrate and lighting device including same
    6.
    发明授权
    Quantum dot light enhancement substrate and lighting device including same 有权

    公开(公告)号：US10096744B2

    公开(公告)日：2018-10-09

    申请号：US15619731

    申请日：2017-06-12

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Seth Coe-Sullivan ,  Peter Kazlas

    IPC分类号： H01L33/06 ,  H01L33/04 ,  H01L33/42 ,  H01L33/50 ,  H01L33/58 ,  H01L33/60 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H05B33/14 ,  H01L27/32 ,  H01L31/0352

    摘要： 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. In certain embodiments, a lighting device includes a component described herein.

    Lighting systems and devices including same
    8.
    发明授权
    Lighting systems and devices including same 有权

    公开(公告)号：US09946004B2

    公开(公告)日：2018-04-17

    申请号：US14960633

    申请日：2015-12-07

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Seth Coe-Sullivan ,  John R. Linton ,  Daniel Cohen ,  John E. Ritter

    IPC分类号： G02F1/13357 ,  F21V8/00

    CPC分类号： G02B6/0026 ,  G02B6/005 ,  G02B6/0073

    摘要： A lighting system is disclosed. The lighting system comprises at least one light source comprising a light emitting diode (LED) and one or more phosphors optically coupled to the LED to convert at least a portion of original light emitted by the LED to provide a modified LED light having a first predetermined spectral output, and an optical material that is optically coupled to at least a portion of a surface of a light guide plate and optically coupled to receive at least a portion of the modified LED light and to convert at least a portion of the modified LED light to at least one predetermined wavelength to provide modified light having a second predetermined spectral output, wherein the optical material comprises one or more types of quantum confined semiconductor nanoparticle. A device including a lighting system is also disclosed.

    Light-emitting devices and displays with improved performance
    10.
    发明授权
    Light-emitting devices and displays with improved performance 有权

    公开(公告)号：US09853184B2

    公开(公告)日：2017-12-26

    申请号：US14732772

    申请日：2015-06-07

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Seth Coe-Sullivan ,  Marshall Cox ,  Caroline J. Roush ,  Jonathan S. Steckel

    IPC分类号： H01L33/06 ,  B82Y20/00 ,  B82Y30/00 ,  C09K11/02 ,  C09K11/56 ,  C09K11/88 ,  H01L51/50 ,  H05B33/14 ,  H01L27/15 ,  H01L33/00 ,  H01L33/28

    CPC分类号： H01L33/06 ,  B82Y20/00 ,  B82Y30/00 ,  C09K11/02 ,  C09K11/565 ,  C09K11/883 ,  H01L27/156 ,  H01L33/0029 ,  H01L33/28 ,  H01L51/5012 ,  H01L51/502 ,  H05B33/145

    摘要： Light-emitting devices and displays with improved performance are disclosed. A light-emitting device includes an emissive material disposed between a first electrode, and a second electrode. Various embodiments include a device having a peak external quantum efficiency of at least about 2.2%; a device that emits light having a CIE color coordinate of x greater than 0.63; a device having an external quantum efficiency of at least about 2.2 percent when measured at a current density of 5 mA/cm2. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a peak luminescent efficiency of at least about 1.5 lumens per watt. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting red light upon excitation, wherein the device has a luminescent efficiency of at least about 1.5 lumens per watt when measured at a current density of 5 milliamps/square centimeter. Also disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting green light upon excitation, wherein the device has a peak external quantum efficiency of at least about 1.1 percent. Further disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals, wherein the device has a luminescent efficiency of at least about 3 lumens per watt when measured at a current density of 5 mA/cm2. Further disclosed is a light-emitting device comprising a plurality of semiconductor nanocrystals capable of emitting green light upon excitation, wherein the device has an external quantum efficiency of at least about 2% when measured at a current density of 5 mA/cm2. Other light-emitting devices and displays with improved performance are disclosed. Also disclosed are methods for preparing and for purifying semiconductor nanocrystals.