High efficiency and brightness fluorescent organic light emitting diode by triplet-triplet fusion
    5.
    发明授权
    High efficiency and brightness fluorescent organic light emitting diode by triplet-triplet fusion 有权
    高效率和亮度的荧光有机发光二极管通过三线态三重态融合

    公开(公告)号:US08952362B2

    公开(公告)日:2015-02-10

    申请号:US13600651

    申请日:2012-08-31

    IPC分类号: H01L51/54

    CPC分类号: H01L51/5012 H01L2251/55

    摘要: A first device is provided. The first device further comprises an organic light emitting device. The organic light emitting device further comprises an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include an organic host compound and at least one organic emitting compound capable of fluorescent emission at room temperature. Various configurations are described for providing a range of current densities in which T-T fusion dominates over S-T annihilation, leading to very high efficiency fluorescent OLEDs.

    摘要翻译: 提供第一个设备。 第一器件还包括有机发光器件。 有机发光器件还包括阳极,阴极和布置在阳极和阴极之间的发光层。 发射层可以包括在室温下能够发荧光的有机主体化合物和至少一种有机发光化合物。 描述了各种配置以提供一定范围的电流密度,其中T-T融合优于S-T湮灭,导致非常高效率的荧光OLED。

    Stacked organic photosensitive devices
    9.
    发明授权
    Stacked organic photosensitive devices 有权
    堆叠有机光敏元件

    公开(公告)号:US07915701B2

    公开(公告)日:2011-03-29

    申请号:US12123095

    申请日:2008-05-19

    IPC分类号: H01L31/00

    摘要: A device is provided having a first electrode, a second electrode, a first photoactive region having a characteristic absorption wavelength λ1 and a second photoactive region having a characteristic absorption wavelength λ2. The photoactive regions are disposed between the first and second electrodes, and further positioned on the same side of a reflective layer, such that the first photoactive region is closer to the reflective layer than the second photoactive region. The materials comprising the photoactive regions may be selected such that λ1 is at least about 10% different from λ2. The device may further comprise an exciton blocking layer disposed adjacent to and in direct contact with the organic acceptor material of each photoactive region, wherein the LUMO of each exciton blocking layer other than that closest to the cathode is not more than about 0.3 eV greater than the LUMO of the acceptor material.

    摘要翻译: 提供了具有第一电极,第二电极,具有特征吸收波长λ1的第一光活性区域和具有特征吸收波长λ2的第二光活性区域的装置。 光活性区域设置在第一和第二电极之间,并且进一步定位在反射层的相同侧上,使得第一光活性区域比第二光活性区域更靠近反射层。 可以选择包含光活性区域的材料,使得λ1与λ2至少约10%不同。 该装置还可以包括邻近并与每个光活性区域的有机受体材料直接接触的激子阻挡层,其中除最接近阴极之外的每个激子阻挡层的LUMO不大于约0.3eV,大于约0.3eV 受体材料的LUMO。