发明申请
- 专利标题: Carbazole Derivative with Heteroaromatic Ring, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using Carbazole Derivative with Heteroaromatic Ring
- 专利标题(中): 咔唑衍生物与杂芳环,发光元件,发光器件和使用咔唑衍生物与杂芳环的电子器件
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申请号: US13570832申请日: 2012-08-09
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公开(公告)号: US20120302751A1公开(公告)日: 2012-11-29
- 发明人: Hiroko NOMURA , Sachiko KAWAKAMI , Nobuharu OHSAWA , Satoshi SEO
- 申请人: Hiroko NOMURA , Sachiko KAWAKAMI , Nobuharu OHSAWA , Satoshi SEO
- 专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 优先权: JP2009-069177 20090320
- 主分类号: C07D403/12
- IPC分类号: C07D403/12 ; C07D403/14 ; C07D413/14 ; C07D413/12
摘要:
Disclosed is a carbazole derivative and a light-emitting element, a light-emitting device, and an electronic device using thereof. The carbazole derivative possesses an oxadiazole moiety or a quinoxaline moiety as a heteroaromatic ring having an electron-transporting property and a carbazole moiety having a hole-transporting property. The ability of the carbazole derivative to transport both electrons and holes and its large excitation energy larger than a triplet excitation energy of a phosphorescent compound allow the formation of a phosphorescent light-emitting element having well-controlled carrier balance, which contributes to the formation of light-emitting devices and electronic devices that are capable of being driven at a low voltage, have a long lifetime, and consume low power. The detailed structure of the carbazole derivative is defined in the specification.