公开(公告)号：US20150108462A1

公开(公告)日：2015-04-23

申请号：US14584362

申请日：2014-12-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideko Inoue ,  Tomoya Yamaguchi ,  Satoko Shitagaki ,  Takahiro Ushikubo ,  Satoshi Seo ,  Yui Yamada ,  Hiromi Nowatari

IPC: H01L51/00

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L27/18 ,  H01L27/3244 ,  H01L27/3283 ,  H01L51/009 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5044 ,  H01L51/5278 ,  H01L2251/5361 ,  H05B33/14

Abstract: Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.

Abstract translation: 提供可以发射磷光的新物质。 或者，提供了具有高排放效率的新型物质。 提供其中4-芳基嘧啶衍生物为配体和铱为中心金属的有机金属配合物。 具体地说，提供具有由通式（G1）表示的结构的有机金属络合物。 在通式（G1）中，R 1表示取代或未取代的碳原子数1〜4的烷基或取代或未取代的碳原子数6〜10的芳基，R 2表示氢，取代或未取代的烷基， 至4个碳原子，以及取代或未取代的苯基，R 3表示氢或取代或未取代的碳原子数1〜4的烷基，Ar 1表示取代或未取代的碳数为6〜10的亚芳基。

公开(公告)号：US08952394B2

公开(公告)日：2015-02-10

申请号：US14070917

申请日：2013-11-04

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiromi Nowatari ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Takahiro Ushikubo ,  Tetsuo Tsutsui

IPC: H01L33/00 ,  H01L51/50 ,  H01L51/52 ,  H01L51/00

CPC classification number: H01L51/5012 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0067 ,  H01L51/007 ,  H01L51/0072 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/5036 ,  H01L51/504 ,  H01L51/5278

Abstract: An object is to provide a light-emitting element which exhibits light emission with high luminance and can be driven at low voltage. Another object is to provide a light-emitting device or an electronic device with reduced power consumption. Between an anode and a cathode, n (n is a natural number of two or more) EL layers are provided, where between a first EL layer and a second EL layer, a first layer containing any of an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, and a rare earth metal compound, a second layer containing a material having a high electron-transporting property in contact with the first layer, and a region containing a material having a high hole-transporting property and an acceptor material in contact with the second layer are provided in this order from the anode side.

Abstract translation: 本发明的目的是提供一种具有高亮度发光并能够以低电压驱动的发光元件。 另一个目的是提供具有降低的功耗的发光装置或电子装置。 在阳极和阴极之间，提供n（n是两个或多个的自然数）EL层，其中在第一EL层和第二EL层之间，含有碱金属，碱土金属 ，稀土金属，碱金属化合物，碱土金属化合物和稀土金属化合物，含有与第一层接触的电子传输性高的材料的第二层和含有材料的区域 从阳极侧依次设置具有高空穴传输性和与第二层接触的受主材料。