LIGHT-EMITTING ELEMENT AND COMPOSITION
    7.
    发明公开

    公开(公告)号:EP4219469A1

    公开(公告)日:2023-08-02

    申请号:EP21872232.0

    申请日:2021-09-13

    摘要: To provide a light emitting device excellent in maximum light emission efficiency.
    A light emitting device having an anode and a cathode, and a first layer and a second layer disposed between the anode and the cathode, in which the first layer is a layer containing at least one compound (B-1) selected from compounds represented by the formula (B), the second layer is a layer containing at least one compound (B-2) selected from compounds represented by the formula (B), and a crosslinked body of a compound having a cross-linkable group, and at least one of the compound (B-1) and the compound (B-2) is a compound represented by the formula (B) in which n B1 is 1 or more.