Nano-objects for purcell enhancement, out-coupling and engineering radiation pattern

    公开(公告)号:US11245086B2

    公开(公告)日:2022-02-08

    申请号:US16814256

    申请日:2020-03-10

    Abstract: Embodiments of the disclosed subject matter provide a device including one or more organic layers that include an emissive layer, a first electrode layer disposed over the one or more organic layers, a plurality of nanostructures formed as part of the first electrode layer, a substrate, a second electrode layer, where the second electrode layer is disposed on the substrate, the one or more organic layers are disposed on the second electrode layer, and the first electrode layer including the plurality of nanostructures is disposed on the one or more organic layers and within the predetermined threshold distance of the emissive layer.

    Organic electroluminescent devices
    24.
    发明授权

    公开(公告)号:US12225760B2

    公开(公告)日:2025-02-11

    申请号:US18599472

    申请日:2024-03-08

    Abstract: Provided are compounds, formulations comprising compounds, and devices that utilize compounds, where the devices include a substrate, a first electrode, an organic emissive layer comprising an organic emissive material disposed over the first electrode. The device includes an enhancement layer, comprising a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to the organic emissive material and transfers excited state energy from the organic emissive material to the non-radiative mode of surface plasmon polaritons. The enhancement layer is provided no more than a threshold distance away from the organic emissive layer, where the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer. At least one of the organic emissive material and the organic emissive layer has a vertical dipole ratio (VDR) value of equal or greater than 0.33.

    Organic electroluminescent devices
    25.
    发明授权

    公开(公告)号:US12161009B2

    公开(公告)日:2024-12-03

    申请号:US18240942

    申请日:2023-08-31

    Abstract: Embodiments of the disclosed subject matter provide a device including one or more organic layers that include an emissive layer, a first electrode layer disposed over the one or more organic layers, a plurality of nanostructures formed as part of the first electrode layer, a substrate, a second electrode layer, where the second electrode layer is disposed on the substrate, the one or more organic layers are disposed on the second electrode layer, and the first electrode layer including the plurality of nanostructures is disposed on the one or more organic layers and within the predetermined threshold distance of the emissive layer.

    ORGANIC ELECTROLUMINESCENT DEVICES
    27.
    发明公开

    公开(公告)号:US20240215302A1

    公开(公告)日:2024-06-27

    申请号:US18599472

    申请日:2024-03-08

    Abstract: Provided are compounds, formulations comprising compounds, and devices that utilize compounds, where the devices include a substrate, a first electrode, an organic emissive layer comprising an organic emissive material disposed over the first electrode. The device includes an enhancement layer, comprising a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to the organic emissive material and transfers excited state energy from the organic emissive material to the non-radiative mode of surface plasmon polaritons. The enhancement layer is provided no more than a threshold distance away from the organic emissive layer, where the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer. At least one of the organic emissive material and the organic emissive layer has a vertical dipole ratio (VDR) value of equal or greater than 0.33.

    ORGANIC ELECTROLUMINESCENT DEVICES
    29.
    发明公开

    公开(公告)号:US20230247856A1

    公开(公告)日:2023-08-03

    申请号:US18130549

    申请日:2023-04-04

    CPC classification number: H10K50/85 G02B5/008 H10K2102/351

    Abstract: Devices and techniques are provided for achieving OLED devices that include one or more enhancement layers formed at least partially from a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to an organic emissive material in the organic emissive layer, where a majority of excited state energy is transferred from the organic emissive material to a non-radiative mode of surface plasmon polaritons of the enhancement layer.

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