DONOR-ACCEPTOR COMPOUNDS WITH NITROGEN CONTAINING POLYAROMATICS AS THE ACCEPTOR
    17.
    发明申请
    DONOR-ACCEPTOR COMPOUNDS WITH NITROGEN CONTAINING POLYAROMATICS AS THE ACCEPTOR 有权
    具有含氮多元醇作为受体的受体受体化合物

    公开(公告)号:US20140332758A1

    公开(公告)日:2014-11-13

    申请号:US13890437

    申请日:2013-05-09

    Abstract: Donor-acceptor compounds with nitrogen containing polyaromatics as the acceptor with emission originated from the charge transfer (CT) state is disclosed. The donor-acceptor compound is provided that has the structure of Formula 1 shown below: wherein X1 to X12 is independently selected from the group consisting of C—R and N, wherein at least one of X1 to X12 is N, wherein each R is independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof; and at least one of the R comprises a donor group with at least two electron-donating nitrogens.

    Abstract translation: 公开了具有含氮多元芳族化合物作为起始于电荷转移(CT)状态的发射的受体的供体 - 受体化合物。 提供具有以下结构的供体 - 受体化合物:其中X1至X12独立地选自C-R和N,其中X 1至X 12中的至少一个为N,其中每个R为 烷基,环烷基,杂烷基,芳基烷基,烷氧基,芳氧基,氨基,甲硅烷基,烯基,环烯基,杂烯基,炔基,芳基,杂芳基,酰基,羰基,羧酸,酯, 腈,异腈,硫烷基,亚磺酰基,磺酰基,膦基及其组合; 并且R中的至少一个包含具有至少两个给电子氮的供体基团。

    NON-BLOCKED PHOSPHORESCENT OLEDS
    19.
    发明申请

    公开(公告)号:US20210135143A1

    公开(公告)日:2021-05-06

    申请号:US17145710

    申请日:2021-01-11

    Abstract: An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum.

    NON-BLOCKED PHOSPHORESCENT OLEDS
    20.
    发明申请

    公开(公告)号:US20200176701A1

    公开(公告)日:2020-06-04

    申请号:US16781173

    申请日:2020-02-04

    Abstract: An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum.

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