公开(公告)号：US20230147615A1

公开(公告)日：2023-05-11

申请号：US18047000

申请日：2022-10-17

申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

发明人： Nozomi KOMATSU ,  Sachiko KAWAKAMI ,  Hiromitsu KIDO ,  Masatoshi TAKABATAKE

IPC分类号： C07D491/048 ,  C07D495/04 ,  H01L51/00

CPC分类号： C07D491/048 ,  C07D495/04 ,  H01L51/0036 ,  H01L51/0071

摘要： An organic compound that is stable in an excited state and has high emission efficiency is provided. An organic compound represented by General Formula (G1) is provided. Note that in General Formula (G1), Q1 represents sulfur or oxygen. R1 to R5 each independently represent hydrogen, deuterium, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms, a substituted or unsubstituted polycyclic alkyl group having 6 to 10 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms. In addition, A1 represents an aryl group having 6 to 100 carbon atoms and including a substituted or unsubstituted substituent, or a heteroaryl group having 2 to 100 carbon atoms and including a substituted or unsubstituted substituent. Deuterium is substituted for at least one of hydrogen contained in R1 to R5 and A1.

公开(公告)号：US20220209136A1

公开(公告)日：2022-06-30

申请号：US17606152

申请日：2020-04-24

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Sachiko Kawakami ,  Nozomi KOMATSU ,  Satoshi SEO

IPC分类号： H01L51/00

摘要： A novel light-emitting device is provided. A light-emitting device with a long lifetime is provided. The light-emitting device includes an anode, a cathode, and an EL layer. The light-emitting layer is positioned between the anode and the cathode. The EL layer includes a light-emitting layer and an electron-transport layer. The electron-transport layer is positioned between the light-emitting layer and the cathode. The light-emitting layer contains a first organic compound, a second organic compound, and an emission center substance. The combination of the first organic compound and the second organic compound can form an exciplex. The electron-transport layer contains an organic compound represented by General Formula (G1) below. (Note that in General Formula (G1) below, Ar1 represents a benzoquinolyl group or a benzoisoquinolyl group, and Ar2 represents a triphenylenylnaphthylene group or a naphthylenyltriphenylene-diyl group.)

公开(公告)号：US20230354703A1

公开(公告)日：2023-11-02

申请号：US18305550

申请日：2023-04-24

申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

发明人： Nozomi KOMATSU ,  Yui YOSHIYASU ,  Nobuharu OHSAWA ,  Takeyoshi WATABE

IPC分类号： H10K85/60 ,  C07D519/00 ,  C09K11/06

CPC分类号： H10K85/6572 ,  C07D519/00 ,  C09K11/06 ,  H10K50/13

摘要： An electron-injection organic compound capable of providing a high-performance semiconductor device, and a light-emitting device including the organic compound are provided. An organic compound represented by General Formula (G1) and a light-emitting device including the organic compound are provided. Note that in General Formula (G1), R1 to R8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 6 to 30 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaromatic hydrocarbon group having 2 to 30 carbon atoms, and a group represented by Structural Formula (R-1). Note that at least two of R1 to R8 each represent a group other than hydrogen, and one to four of R1 to R8 each represent the group represented by Structural Formula (R-1).

公开(公告)号：US20230146354A1

公开(公告)日：2023-05-11

申请号：US17819429

申请日：2022-08-12

申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

发明人： Sachiko KAWAKAMI ,  Kaori OGITA ,  Nozomi KOMATSU ,  Tsunenori SUZUKI ,  Naoaki HASHIMOTO ,  Satoshi SEO ,  Kyoko TAKEDA

IPC分类号： H01L51/00

CPC分类号： H01L51/0074 ,  H01L51/0073 ,  H01L51/5016

摘要： A light-emitting device including at least a light-emitting layer between an anode and a cathode; the light-emitting layer contains at least a light-emitting substance; the light-emitting substance is a substance emitting fluorescent light; a first organic compound represented by General Formula (G1) is included between the anode and the cathode;




in General Formula (G1), Ar1 represents a substituted or unsubstituted fluorenyl group, Ar2 represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and A1 represents a substituted or unsubstituted dibenzofuranyl group or a substituted or unsubstituted dibenzothiophenyl group; when at least one of Ar1, Ar2, and A1 has one or more substituents, the substituents each independently represent an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 13 carbon atoms. The aryl group exclude a heteroaryl group. The substituents may be bonded to each other to form a ring.

公开(公告)号：US20200098997A1

公开(公告)日：2020-03-26

申请号：US16473053

申请日：2017-12-19

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Takeyoshi WATABE ,  Satoshi SEO ,  Nozomi KOMATSU ,  Ryohei YAMAOKA ,  Harue OSAKA ,  Kunihiko SUZUKI ,  Shunsuke HOSOUMI

IPC分类号： H01L51/00

摘要： A highly reliable light-emitting element having high emission efficiency is provided. The light-emitting element includes a light-emitting layer including a first organic compound and a guest material. The first organic compound has a substituted or unsubstituted carbazole skeleton. In the light-emitting layer, the weight ratio of a hydrocarbon group substitution product in which at least one of hydrogen atoms in the first organic compound is substituted by a hydrocarbon group having 1 to 6 carbon atoms to the first organic compound is greater than 0 and less than or equal to 0.1.

公开(公告)号：US20210119126A1

公开(公告)日：2021-04-22

申请号：US16498141

申请日：2018-03-26

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Sachiko Kawakami ,  Nozomi KOMATSU ,  Satoshi SEO

IPC分类号： H01L51/00 ,  H01L51/50 ,  H01L51/56 ,  G01N30/72 ,  G01N30/88 ,  G01N30/74

摘要： A method of analyzing a light-emitting element is provided.
The method analyzes an organic semiconductor element including an organic semiconductor layer including one or a plurality of layers between a pair of electrodes. The organic semiconductor element is analyzed with use of a step of separating one of the electrodes of the organic semiconductor element, a step of analyzing a stacked layer and/or a mixed state of the exposed organic semiconductor layer by a first mass analysis method, a step of forming a solution by eluting at least any one or a plurality of organic compounds included in layers in the organic semiconductor layer with a solvent, a step of isolating an organic compound included in the solution by liquid chromatography and analyzing the isolated organic compound by a second mass analysis method, a step of comparing a mass-to-charge ratio detected by the first mass analysis method and a mass-to-charge ratio detected by the second mass analysis method, and a step of measuring the physical properties of the isolated organic compound.

公开(公告)号：US20160197299A1

公开(公告)日：2016-07-07

申请号：US15068031

申请日：2016-03-11

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Tsunenori Suzuki ,  Nozomi KOMATSU ,  Harue OSAKA ,  Hiromi SEO ,  Satoshi SEO

IPC分类号： H01L51/50

CPC分类号： H01L51/5012 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/5052 ,  H01L51/5056 ,  H01L51/506 ,  H01L51/5088

摘要： Provided is a light-emitting element in which an adverse effect by halides in an EL layer is suppressed and which can be provided with low cost. The light-emitting element including at least two layers between an anode and a light-emitting layer. One of the two layers which is closer to the anode has higher concentration of halides and halogen elements than the other layer closer to the light-emitting layer.

公开(公告)号：US20160118605A1

公开(公告)日：2016-04-28

申请号：US14924027

申请日：2015-10-27

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Sachiko KAWAKAMI ,  Rina NAKAMURA ,  Nozomi KOMATSU ,  Naoaki HASHIMOTO ,  Toshiki HAMADA ,  Tsunenori SUZUKI ,  Satoshi SEO

IPC分类号： H01L51/00 ,  C07F15/00 ,  C09K11/06 ,  H01L51/50

CPC分类号： H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/185 ,  H01L51/0025 ,  H01L51/5016 ,  H01L2251/5384

摘要： A long-life light-emitting element is provided by reducing a specific kind of impurity in the light-emitting element, particularly an impurity originating in an iridium complex. The light-emitting element includes an iridium complex. The iridium complex includes an iridium metal and a ligand coordinated to the iridium metal. In analysis of the light-emitting element by liquid chromatography mass spectrometry using a chromatograph of a photodiode array detector, the proportion of the peak area of a ligand not coordinated to the iridium metal to the peak area of the iridium complex is greater than or equal to 0% and less than or equal to 10%.

摘要翻译： 通过减少发光元件中的特定种类的杂质，特别是源于铱络合物的杂质，提供长寿命的发光元件。 发光元件包括铱络合物。 铱络合物包括铱金属和与铱金属配位的配体。 在通过使用光电二极管阵列检测器的色谱仪的液相色谱质谱法分析发光元件时，不与铱金属配位的配体的峰面积与铱络合物的峰面积的比例大于或等于 至0％且小于或等于10％。