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％。

公开(公告)号：US20190115553A1

公开(公告)日：2019-04-18

申请号：US16214193

申请日：2018-12-10

申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

发明人： Satoshi SEO ,  Takeyoshi WATABE ,  Rina NAKAMURA ,  Harue OSAKA ,  Ayumi SATO ,  Kunihiko SUZUKI ,  Hayato YAMAWAKI

IPC分类号： H01L51/50 ,  H01L51/00

摘要： A novel light-emitting element or a highly reliable light-emitting element is provided. The light-emitting element includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes at least a light-emitting layer. The light-emitting layer includes at least a first organic compound and a second organic compound. The energy for liberating halogen from a halogen-substituted product of the first organic compound in a radical anion state and in a triplet excited state is less than or equal to 1.00 eV. The amount of halogen-substituted product in the second organic compound is not increased with an increase in driving time of the light-emitting element.

公开(公告)号：US20160118614A1

公开(公告)日：2016-04-28

申请号：US14882701

申请日：2015-10-14

申请人： Semiconductor Energy Laboratory Co., Ltd.

发明人： Satoshi SEO ,  Takeyoshi WATABE ,  Rina NAKAMURA ,  Harue OSAKA ,  Ayumi SATO ,  Kunihiko SUZUKI ,  Hayato YAMAWAKI

IPC分类号： H01L51/50 ,  H01L27/32

CPC分类号： H01L51/5012 ,  H01L51/0025 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016

摘要： A novel light-emitting element or a highly reliable light-emitting element is provided. The light-emitting element includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes at least a light-emitting layer. The light-emitting layer includes at least a first organic compound and a second organic compound. The energy for liberating halogen from a halogen-substituted product of the first organic compound in a radical anion state and in a triplet excited state is less than or equal to 1.00 eV. The amount of halogen-substituted product in the second organic compound is not increased with an increase in driving time of the light-emitting element.

摘要翻译： 提供了一种新颖的发光元件或高度可靠的发光元件。 发光元件包括在阳极和阴极之间的阳极，阴极和EL层。 EL层至少包括发光层。 发光层至少包含第一有机化合物和第二有机化合物。 从自由基阴离子状态和三重激发态的第一有机化合物的卤素取代产物中释放卤素的能量小于或等于1.00eV。 随着发光元件的驱动时间的增加，第二有机化合物中卤素取代的产物的量不会增加。

公开(公告)号：US20160118615A1

公开(公告)日：2016-04-28

申请号：US14922636

申请日：2015-10-26

申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

发明人： Satoshi SEO ,  Tsunenori SUZUKI ,  Takeyoshi WATABE ,  Kunihiko SUZUKI ,  Toshiki HAMADA ,  Rina NAKAMURA ,  Hayato YAMAWAKI ,  Ayumi SATO ,  Harue OSAKA

IPC分类号： H01L51/50

CPC分类号： H01L51/5092 ,  H01L51/0025 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5072

摘要： To provide a novel light-emitting element or a highly reliable light-emitting element. To provide a light-emitting device, a display device, an electronic device, and a lighting device each of which can be manufactured at a low cost. To provide a light-emitting element including an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a light-emitting layer and an electron injection transport layer between the light-emitting layer and the cathode, and the amount of a halogen detected from a material forming the electron injection transport layer is less than or equal to 30 ppm.

摘要翻译： 提供新颖的发光元件或高度可靠的发光元件。 提供可以以低成本制造的发光装置，显示装置，电子装置和照明装置。 在阳极和阴极之间提供包括阳极，阴极和EL层的发光元件。 EL层包括在发光层和阴极之间的发光层和电子注入传输层，并且从形成电子注入传输层的材料检测到的卤素的量小于或等于30ppm。