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    SURFACE TREATMENT FOR COLLOIDAL STABILITY OF IN-SOLUTION LIGAND EXCHANGED QUANTUM DOTS
    4.
    发明申请
    SURFACE TREATMENT FOR COLLOIDAL STABILITY OF IN-SOLUTION LIGAND EXCHANGED QUANTUM DOTS 有权

    公开(公告)号：US20230082643A1

    公开(公告)日：2023-03-16

    申请号：US17473712

    申请日：2021-09-13

    申请人： Lawrence Livermore National Security, LLC

    发明人： Tom Nakotte ,  Jinkyu Han ,  Anna Hiszpanski

    IPC分类号： C09C3/08 ,  C01B19/00 ,  C09C1/00

    摘要： A product includes a solution comprising Ag2Se quantum dots in a solvent. The solution is colloidally stable for at least one week. A product includes a solid layer formed of Ag2Se quantum dots. The layer is at least 100 nm thick. The layer is physically characterized by a substantial absence of defects therein. A process includes forming a solution of Ag2Se quantum dots and adding at least acetonitrile to the solution. The process further includes separating the Ag2Se quantum dots from the solution and washing the Ag2Se quantum dots at least two times in a solution comprising at least acetonitrile. The process further includes redispersing the washed Ag2Se quantum dots in a nonpolar solvent to create a colloidal suspension.

    SMART NANOSCALE MATERIALS WITH COLLOIDAL CORE/SHELL NANOPARTICLES
    5.
    发明申请
    SMART NANOSCALE MATERIALS WITH COLLOIDAL CORE/SHELL NANOPARTICLES 有权

    公开(公告)号：US20220267667A1

    公开(公告)日：2022-08-25

    申请号：US17183007

    申请日：2021-02-23

    申请人： Lawrence Livermore National Security, LLC

    发明人： Jinkyu Han ,  Thomas Han

    IPC分类号： C09K11/02 ,  G02F1/166 ,  C09K11/77

    摘要： A product includes a cell having a mixture comprising a solvent and colloidal nanoparticles. Each of the colloidal nanoparticles have a core and a shell surrounding the core. The cell also includes at least one electrode. A product includes a nanoparticle having a core and a shell. The core includes a luminescent material. The shell is silicon-based. A method includes applying an external stimulus to a cell containing a mixture comprising a solvent and colloidal nanoparticles for altering the brightness and/or color of an assembly of at least some of the colloidal nanoparticles. Each of the colloidal nanoparticles have a core and a shell surrounding the core.

    MAGNETIC NANOSTRUCTURES AND COMPOSITES FOR MILLIMETER WAVE ABSORPTION
    6.
    发明申请
    MAGNETIC NANOSTRUCTURES AND COMPOSITES FOR MILLIMETER WAVE ABSORPTION 有权

    公开(公告)号：US20210184364A1

    公开(公告)日：2021-06-17

    申请号：US16712812

    申请日：2019-12-12

    申请人： Lawrence Livermore National Security, LLC

    发明人： Jinkyu Han ,  Thomas Han

    IPC分类号： H01Q17/00

    摘要： A product includes a nanostructure having a core and a shell. The core has a coercive field of at least 3 kOe and the shell has a saturation magnetization of at least 50 emu per gram. A product includes a nanostructure having a core and a shell. The shell has a coercive field of at least 3 kOe and the core has a saturation magnetization of at least 50 emu per gram. A method includes forming core/shell nanostructures and forming millimeter wave absorbers including the core/shell nanostructures and a support structure.