发明名称 |
Carbazole derivative with heteroaromatic ring, and light-emitting element, light-emitting device, and electronic device using carbazole derivative with heteroaromatic ring |
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.
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申请公布号 |
US8530658(B2) |
申请公布日期 |
2013.09.10 |
申请号 |
US201213570832 |
申请日期 |
2012.08.09 |
申请人 |
NOMURA HIROKO;KAWAKAMI SACHIKO;OHSAWA NOBUHARU;SEO SATOSHI;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
NOMURA HIROKO;KAWAKAMI SACHIKO;OHSAWA NOBUHARU;SEO SATOSHI |
分类号 |
C07D241/40;B32B9/00;H01J1/62 |
主分类号 |
C07D241/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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