Light emitting element and light emitting device

    公开(公告)号:US09711745B2

    公开(公告)日:2017-07-18

    申请号:US13097136

    申请日:2011-04-29

    申请人: Hiroko Yamazaki

    发明人: Hiroko Yamazaki

    IPC分类号: H01L51/30 H01L51/50 H01L51/00

    摘要: A high efficient white emission light emitting element having peak intensity in each wavelength region of red, green, and blue is provided. Specifically, a white emission light emitting element having an emission spectrum that is independent of current density is provided. A first light emitting layer 312 exhibiting blue emission and a second light emitting layer 313 containing a phosphorescent material that generates simultaneously phosphorescent emission and excimer emission are combined. In order to derive excimer emission from the phosphorescent material, it is effective to disperse a phosphorescent material 323 having a high planarity structure such as platinum complex at a high concentration of at least 10 wt % to a host material 322. Further, the first light emitting layer 312 is provided to be in contact with the second light emitting layer 313 at the side of an anode. Ionization potential of the second light emitting layer 313 is preferably larger by 0.4 eV than that of the first light emitting layer 312.

    Organic molecular memory
    5.
    发明授权
    Organic molecular memory 有权
    有机分子记忆

    公开(公告)号:US09412943B2

    公开(公告)日:2016-08-09

    申请号:US14842052

    申请日:2015-09-01

    IPC分类号: H01L51/30 H01L35/24 H01L45/00

    摘要: An organic molecular memory in an embodiment includes a first conductive layer; a second conductive layer; and an organic molecular layer provided between the first conductive layer and the second conductive layer, the organic molecular layer including an organic molecule having an oligophenylene ethynylene backbone, the oligophenylene ethynylene backbone including three or more benzene rings, and the oligophenylene ethynylene backbone including two fluorine atoms added in ortho positions or meta positions of one of the benzene rings other than benzene rings at both ends.

    摘要翻译: 实施方案中的有机分子存储器包括第一导电层; 第二导电层; 以及设置在所述第一导电层和所述第二导电层之间的有机分子层,所述有机分子层包含具有低亚乙烯基亚乙炔主链的有机分子,所述低亚苯基亚乙炔主链包含三个以上的苯环,所述低聚亚乙炔主链包括两个氟 在两个苯环之外的苯环之一的邻位置或间位加成原子。

    Organic light-emitting device
    7.
    发明授权
    Organic light-emitting device 有权
    有机发光装置

    公开(公告)号:US09246111B1

    公开(公告)日:2016-01-26

    申请号:US14560352

    申请日:2014-12-04

    摘要: An organic light-emitting device including a first electrode; a second electrode; and an organic layer, the organic layer including an emission layer, a hole transport region including a hole transport layer, a hole injection layer, or a buffer layer, and an electron transport region including a hole blocking layer, an electron transport layer, or an electron injection layer, wherein a triplet energy of a hole transport material of the hole transport layer is from about 2.4 to about 3.2 eV, an electron affinity of the hole transport material is from about 2.2 to about 2.6 eV; the triplet energy of the hole transport material is greater than a triplet energy of a dopant of the emission layer and a triplet energy of a host material of the emission layer, the host material of the emission layer includes the compound represented by Formula 1.

    摘要翻译: 一种有机发光装置,包括:第一电极; 第二电极; 有机层,包括发光层的有机层,包括空穴传输层的空穴传输区域,空穴注入层或缓冲层,以及包含空穴阻挡层,电子传输层或电子传输层的电子传输区域 电子注入层,其中空穴传输层的空穴传输材料的三线态能为约2.4至约3.2eV,空穴传输材料的电子亲和力为约2.2至约2.6eV; 空穴传输材料的三线态能量大于发射层的掺杂剂的三线态能量和发射层的主体材料的三线态能量,发射层的主体材料包括由式1表示的化合物。