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    LIGHT-EMITTING ELEMENT
    3.
    发明申请
    LIGHT-EMITTING ELEMENT 审中-公开
    发光元件

    公开(公告)号：US20140252338A1

    公开(公告)日：2014-09-11

    申请号：US14285754

    申请日：2014-05-23

    申请人： Semiconductor Energy Laboratory Co., Ltd.

    发明人： Satoshi SEO ,  Satoko SHITAGAKI ,  Nobuharu OHSAWA ,  Hideko INOUE ,  Hiroshi KADOMA ,  Harue OSAKA ,  Shunpei YAMAZAKI

    IPC分类号： H01L51/50

    CPC分类号： H01L51/5028 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5024 ,  H05B33/14

    摘要： To provide a light-emitting element with high emission efficiency or long lifetime, in which the use amount of a phosphorescent compound is small. To provide a light-emitting element including a light-emitting layer between a pair of electrodes, wherein the light-emitting layer includes a phosphorescent compound, a first organic compound, and a second organic compound, and the combination of the first organic compound and the second organic compound forms an exciplex. The light-emitting element transfers energy by utilizing the overlap between the emission spectrum of the exciplex and the absorption spectrum of the phosphorescent compound and thus has high energy transfer efficiency, even when the concentration of the phosphorescent compound is low.

    摘要翻译： 为了提供磷光化合物的使用量小的发光效率高，寿命长的发光元件。 为了提供一种在一对电极之间包括发光层的发光元件，其中发光层包括磷光化合物，第一有机化合物和第二有机化合物，以及第一有机化合物和 第二有机化合物形成激元复合物。 发光元件利用激光复合物的发射光谱和磷光化合物的吸收光谱之间的重叠而传递能量，因此即使当磷光化合物的浓度低时，也具有高的能量转移效率。

    Oxadiazole Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device Using the Oxadiazole Derivative
    4.
    发明申请
    Oxadiazole Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device Using the Oxadiazole Derivative 有权
    恶二唑衍生物和发光元件，发光器件，电子器件和使用恶二唑衍生物的照明器件

    公开(公告)号：US20140046073A1

    公开(公告)日：2014-02-13

    申请号：US14055316

    申请日：2013-10-16

    申请人： Semiconductor Energy Laboratory Co., Ltd.

    发明人： Yuko KAWATA ,  Hiroshi KADOMA ,  Nobuharu OHSAWA ,  Satoshi SEO

    IPC分类号： H01L51/00

    CPC分类号： H01L51/007 ,  C07D209/82 ,  C07D413/10 ,  C07D413/14 ,  C07D471/04 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/0074

    摘要： An object of one embodiment of the present invention is to provide a novel oxadiazole derivative as a substance having high excitation energy, in particular, a substance having high triplet excitation energy. One embodiment of the present invention is an oxadiazole derivative represented by General Formula (G1) below. In General Formula (G1), R1 represents either an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. In General Formula (G1), R21 to R27 separately represent any one of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. In General Formula (G1), α represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms. In General Formula (G1), Z represents either a sulfur atom or an oxygen atom.

    摘要翻译： 本发明的一个实施方案的目的是提供一种新的恶二唑衍生物作为具有高激发能的物质，特别是具有高三重态激发能的物质。 本发明的一个实施方案是下述通式（G1）表示的恶二唑衍生物。 在通式（G1）中，R 1表示碳原子数1〜4的烷基或碳原子数6〜13的取代或未取代的芳基。 在通式（G1）中，R21〜R27分别表示氢原子，碳原子数1〜4的烷基和取代或未取代的碳原子数6〜13的芳基中的任一个。 在通式（G1）中，α表示取代或未取代的碳原子数为6〜13的亚芳基。 在通式（G1）中，Z表示硫原子或氧原子。

    SECONDARY BATTERY, PORTABLE INFORMATION TERMINAL, VEHICLE, AND MANUFACTURING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL
    5.
    发明申请
    SECONDARY BATTERY, PORTABLE INFORMATION TERMINAL, VEHICLE, AND MANUFACTURING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL 有权

    公开(公告)号：US20230055667A1

    公开(公告)日：2023-02-23

    申请号：US17793194

    申请日：2021-01-21

    申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    发明人： Yohei MOMMA ,  Hiroshi KADOMA ,  Yoshihiro KOMATSU ,  Shiori SAGA ,  Shunpei YAMAZAKI

    IPC分类号： H01M4/525 ,  C01G53/00

    摘要： A positive electrode active material with little deterioration is provided. Positive electrode active material particles with little deterioration are provided. A power storage device with little deterioration is provided. A highly safe power storage device is provided. A novel power storage device is provided. A secondary battery includes a positive electrode and a negative electrode. In the secondary battery, the positive electrode includes a positive electrode active material; the positive electrode active material includes a crystal exhibiting a layered rock-salt crystal structure; the crystal is represented by the space group R-3m; the positive electrode active material is a particle containing lithium, cobalt, titanium, magnesium, and oxygen; the concentration of the magnesium in a surface portion of the particle is higher than the concentration of the magnesium in an inner portion of the particle; and in the positive electrode active material, the concentration of the titanium in the surface portion of the particle is higher than the concentration of the titanium in the inner portion of the particle.

    Phenanthrene Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
    10.
    发明申请
    Phenanthrene Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device 审中-公开
    菲络合物，发光元件，发光元件，电子器件及照明器件

    公开(公告)号：US20150171333A1

    公开(公告)日：2015-06-18

    申请号：US14632337

    申请日：2015-02-26

    申请人： Semiconductor Energy Laboratory Co., Ltd.

    发明人： Yuko Kawata ,  Hiroshi KADOMA ,  Nobuharu OHSAWA ,  Satoshi SEO

    IPC分类号： H01L51/00 ,  C07D333/76

    CPC分类号： H01L51/0052 ,  C07D333/76 ,  H01L51/006 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/508

    摘要： A novel compound having high triplet excitation energy and a bipolar property is provided. Specifically, a phenanthrene compound represented by General Formula (G1) is provided where R11 to R19 and R21 to R27 separately represent any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and Z represents a sulfur atom or an oxygen atom. The use of the phenanthrene compound as a host material of a light-emitting layer in the presence of a phosphorescent dopant allows the formation of a light-emitting element with high current efficiency.

    摘要翻译： 提供具有高三重态激发能和双极特性的新型化合物。 具体地说，提供由通式（G1）表示的菲化合物，其中R11至R19和R21至R27分别表示氢，具有1至4个碳原子的烷基和取代或未取代的具有6至13个的芳基 碳原子，Ar表示取代或未取代的碳原子数6〜13的亚芳基，Z表示硫原子或氧原子。 在磷光掺杂剂的存在下使用菲化合物作为发光层的主体材料可以形成具有高电流效率的发光元件。