SOLID POLYMER COMPOSITION, A SELF-SUPPORTING FILM AND A LIGHT EMITTING DEVICE

    公开(公告)号:US20220396730A1

    公开(公告)日:2022-12-15

    申请号:US17773121

    申请日:2021-05-28

    申请人: Avantama AG

    IPC分类号: C09K11/61 C09K11/66

    摘要: The invention refers in a first aspect to a solid polymer composition (100) comprising green luminescent crystals (1), non-perovskite red phosphor particles, and a polymer (3). The polymer (3) has a molar ratio of the sum of (oxygen+nitrogen) to carbon z, wherein z≤0.9, z≤0.75 in particular z≤0.4, in particular z≤0.3, in particular z≤0.25. A second aspect of the invention refers to a self-supporting film comprising the solid polymer composition (100) of the first aspect. A third aspect of the invention refers to a light emitting device comprising either the solid polymer composition (100) according to the first aspect of the invention or the self-supporting film according to the second aspect of the invention.

    LUMINESCENT CRYSTALS WITH SHELLS
    5.
    发明公开

    公开(公告)号:US20240093088A1

    公开(公告)日:2024-03-21

    申请号:US18273811

    申请日:2022-09-01

    申请人: Avantama AG

    IPC分类号: C09K11/66 C09K11/02

    CPC分类号: C09K11/664 C09K11/02

    摘要: The present invention relates to the field of luminescent crystals (LCs) of the core-shell type, components and devices comprising the same. Particularly, the present invention relates to the manufacturing of luminescent core-shell nanocrystals, wherein said nanocrystal core comprises or consists of a perovskite crystal having a size of 3-100 nm, and said nanocrystal shell comprises a metal oxide having a thickness of 0.5-10 nm and wherein said method comprises combining suitable starting materials under oxygen-free conditions. The invention further provides for specific luminescent core-shell nanocrystals, to components and products containing such luminescent core-shell nanocrystals.

    LUMINESCENT CRYSTALS AND MANUFACTURING THEREOF

    公开(公告)号:US20210130687A1

    公开(公告)日:2021-05-06

    申请号:US17149176

    申请日:2021-01-14

    申请人: Avantama AG

    摘要: The present invention relates to the field of luminescent crystals (LCs), and more specifically to Quantum Dots (QDs) of formula M1aM2bXc, wherein the substituents are as defined in the specification. The invention provides methods of manufacturing such luminescent crystals, particularly by dispersing suitable starting materials in the presence of a liquid and by the aid of milling balls; to compositions comprising luminescent crystals and to electronic devices, decorative coatings; and to intermediates comprising luminescent crystals.