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    Stacked organic photosensitive devices
    1.
    发明申请
    Stacked organic photosensitive devices 有权
    堆叠有机光敏元件

    公开(公告)号：US20060027801A1

    公开(公告)日：2006-02-09

    申请号：US10911560

    申请日：2004-08-05

    申请人： Stephen Forrest ,  Jiangeng Xue ,  Soichi Uchida ,  Barry Rand

    发明人： Stephen Forrest ,  Jiangeng Xue ,  Soichi Uchida ,  Barry Rand

    IPC分类号： H01L29/08

    CPC分类号： B82Y10/00 ,  H01L27/302 ,  H01L51/0046 ,  H01L51/0051 ,  H01L51/0053 ,  H01L51/0059 ,  H01L51/0078 ,  H01L51/4246 ,  H01L51/4253 ,  Y02E10/549

    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： 提供一种器件，其具有第一电极，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， 。 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的材料，使得λ1至少与λ2不同10％。 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。

    High efficiency organic photovoltaic cells employing hybridized mixed-planar heterojunctions
    2.
    发明申请
    High efficiency organic photovoltaic cells employing hybridized mixed-planar heterojunctions 审中-公开
    采用杂化混合平面异质结的高效有机光伏电池

    公开(公告)号：US20050224905A1

    公开(公告)日：2005-10-13

    申请号：US10822774

    申请日：2004-04-13

    申请人： Stephen Forrest ,  Soichi Uchida ,  Barry Rand ,  Jiangeng Xue

    发明人： Stephen Forrest ,  Soichi Uchida ,  Barry Rand ,  Jiangeng Xue

    IPC分类号： H01L21/00 ,  H01L31/06 ,  H01L51/00 ,  H01L51/42

    CPC分类号： B82Y10/00 ,  H01L51/0046 ,  H01L51/0078 ,  H01L51/4246 ,  H01L51/4253 ,  H01L2251/308 ,  Y02E10/549

    摘要： A device is provided, having a first electrode, a second electrode, and a photoactive region disposed between the first electrode and the second electrode. The photoactive region includes a first organic layer comprising a mixture of an organic acceptor material and an organic donor material, wherein the first organic layer has a thickness not greater than 0.8 characteristic transport lengths, and a second organic layer in direct contact with the first organic layer, wherein: the second organic layer comprises an unmixed layer of the organic acceptor material or the organic donor material of the first organic layer, and the second organic layer has a thickness not less than about 0.1 optical absorption lengths. Preferably, the first organic layer has a thickness not greater than 0.3 characteristic transport lengths. Preferably, the second organic layer has a thickness of not less than about 0.2 optical absorption lengths. Embodiments of the invention can be capable of power efficiencies of 2% or greater, and preferably 5% or greater.

    摘要翻译： 提供一种具有第一电极，第二电极和设置在第一电极和第二电极之间的光活性区的装置。 光活性区域包括包含有机受体材料和有机供体材料的混合物的第一有机层，其中第一有机层具有不大于0.8特征传输长度的厚度，以及与第一有机层直接接触的第二有机层 层，其中：第二有机层包含有机受体材料的未混合层或第一有机层的有机供体材料，第二有机层具有不小于约0.1光学吸收长度的厚度。 优选地，第一有机层具有不大于0.3特征输送长度的厚度。 优选地，第二有机层具有不小于约0.2光学吸收长度的厚度。 本发明的实施例能够实现2％以上，优选5％以上的功率效率。

    High efficiency organic photovoltaic cells employing hybridized mixed-planar heterojunctions
    3.
    发明申请
    High efficiency organic photovoltaic cells employing hybridized mixed-planar heterojunctions 有权
    采用杂化混合平面异质结的高效有机光伏电池

    公开(公告)号：US20050224113A1

    公开(公告)日：2005-10-13

    申请号：US10910371

    申请日：2004-08-04

    申请人： Jiangeng Xue ,  Soichi Uchida ,  Barry Rand ,  Stephen Forrest

    发明人： Jiangeng Xue ,  Soichi Uchida ,  Barry Rand ,  Stephen Forrest

    IPC分类号： H01L31/00 ,  H01L31/0256 ,  H01L51/00 ,  H01L51/30 ,  H01L51/42

    CPC分类号： H01L51/0072 ,  B82Y10/00 ,  H01L31/0256 ,  H01L51/0037 ,  H01L51/0038 ,  H01L51/0046 ,  H01L51/0059 ,  H01L51/0073 ,  H01L51/0078 ,  H01L51/0081 ,  H01L51/0087 ,  H01L51/4246 ,  H01L51/4253 ,  H01L2251/301 ,  H01L2251/308 ,  Y02E10/549

    摘要： A device is provided, having a first electrode, a second electrode, and a photoactive region disposed between the first electrode and the second electrode. The photoactive region includes a first organic layer comprising a mixture of an organic acceptor material and an organic donor material, wherein the first organic layer has a thickness not greater than 0.8 characteristic charge transport lengths, and a second organic layer in direct contact with the first organic layer, wherein: the second organic layer comprises an unmixed layer of the organic acceptor material or the organic donor material of the first organic layer, and the second organic layer has a thickness not less than about 0.1 optical absorption lengths. Preferably, the first organic layer has a thickness not greater than 0.3 characteristic charge transport lengths. Preferably, the second organic layer has a thickness of not less than about 0.2 optical absorption lengths. Embodiments of the invention can be capable of power efficiencies of 2% or greater, and preferably 5% or greater.

    摘要翻译： 提供一种具有第一电极，第二电极和设置在第一电极和第二电极之间的光活性区的装置。 光活性区域包括包含有机受体材料和有机供体材料的混合物的第一有机层，其中第一有机层具有不大于0.8特征电荷输送长度的厚度，以及与第一有机层直接接触的第二有机层 有机层，其中：所述第二有机层包含所述有机受体材料的未混合层或所述第一有机层的有机供体材料，并且所述第二有机层具有不小于约0.1光学吸收长度的厚度。 优选地，第一有机层具有不大于0.3个特征电荷输送长度的厚度。 优选地，第二有机层具有不小于约0.2光学吸收长度的厚度。 本发明的实施例能够实现2％以上，优选5％以上的功率效率。

    Organic Photovoltaic Cells Utilizing Ultrathin Sensitizing Layer
    6.
    发明申请
    Organic Photovoltaic Cells Utilizing Ultrathin Sensitizing Layer 有权
    有机光伏电池利用超薄敏化层

    公开(公告)号：US20070215868A1

    公开(公告)日：2007-09-20

    申请号：US11566134

    申请日：2006-12-01

    申请人： Stephen Forrest ,  Fan Yang ,  Barry Rand

    发明人： Stephen Forrest ,  Fan Yang ,  Barry Rand

    IPC分类号： H01L29/08

    CPC分类号： H01L51/4246 ,  B82Y10/00 ,  H01L27/302 ,  H01L51/0046 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0078 ,  H01L51/4253 ,  Y02E10/549

    摘要： A photosensitive device includes a plurality of organic photoconductive materials disposed in a stack between a first electrode and a second electrode, including a first continuous layer of donor host material, a second continuous layer of acceptor host material, and at least one other organic photoconductive material disposed as a plurality of discontinuous islands between the first continuous layer and the second continuous layer. Each of these other photoconductive materials has an absorption spectra different from the donor host material and the acceptor host material. Preferably, each of the discontinuous islands consists essentially of a crystallite of the respective organic photoconductive material, and more preferably, the crystallites are nanocrystals.

    摘要翻译： 感光装置包括多个有机光电导材料，其布置在第一电极和第二电极之间的堆叠中，包括施主主体材料的第一连续层，受主主体材料的第二连续层和至少一个其它有机光电导材料 被布置为在所述第一连续层和所述第二连续层之间的多个不连续岛。 这些其它光电导材料中的每一种具有与供体主体材料和受主主体材料不同的吸收光谱。 优选地，每个不连续岛基本上由相应有机光电导材料的微晶组成，更优选地，微晶是纳米晶体。