- Nitrogen-containing organic compounds and application of compounds in organic light emission diodes
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The invention discloses nitrogen-containing organic compounds and an application of the compounds in organic light emission diodes. The compounds provided by the invention use azaspirofluorene as a mother nucleus and have stronger rigidity, so that the co
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Paragraph 0068-0071
(2019/07/17)
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- Nitrogen heterocyclic compound, application thereof and OLED (organic light-emitting device)
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The invention provides a nitrogen heterocyclic compound with a structural formula shown in the description. The nitrogen heterocyclic compound has better heat stability, high light-emitting efficiencyand high light-emitting purity and can be applied to the fields of OLEDs (organic light-emitting devices), organic solar cells, organic thin film transistors or organic light sensors. The invention also provides an OLED. The OLED comprises an anode, a cathode and organic layers, wherein the organic layers comprise at least one of a light-emitting layer, a hole injection layer, a hole transmissionlayer, a hole barrier layer, an electron injection layer and an electron transmission layer. At least one of the organic layers contains the heterocyclic compound shown in a structural formula I. TheOLED prepared from the nitrogen heterocyclic compound has the advantages of good electroluminescence efficiency, excellent color purity and long service life.
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Paragraph 0116; 0118; 0119
(2018/09/08)
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- Benzopyrazine compound as well as application thereof and luminescence device
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The invention provides a benzopyrazine compound. The structure formula I of the benzopyrazine compound is as shown in the description. The benzopyrazine compound has high thermal stability, high luminescence efficiency and high luminescence purity, and can be applied to the fields of organic electroluminescence devices, solar cells, organic thin-film transistors or organic photoreceptors. The invention also provides an organic electroluminescence device. The organic electroluminescence device comprises an anode, a cathode and organic layers, wherein the organic layers comprise at least one ofa luminescent layer, a hole injection layer, a hole transporting layer, a hole blocking layer, an electron injection layer and an electron transporting layer; at least one of the organic layers contains the benzopyrazine compound expressed by the structure formula I. The organic electroluminescence device manufactured by the benzopyrazine compound has the advantages of high electroluminescence efficiency, excellent color purity and long service life.
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Paragraph 0068; 0070; 0071; 0072
(2018/09/12)
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- COMPOSITIONS FOR ELECTRONIC DEVICES
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The present invention relates to compositions and formulations for electronic devices comprising mixtures of organic functional materials.
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Paragraph 0174; 0175
(2017/06/12)
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- A compound based on carbazole derivatives
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The invention discloses a compound based on a carbazole derivative. The compound has a structural formula I shown in the specification. The compound based on the carbazole derivative can be used for manufacturing an organic electroluminescence device and has the characteristic of high stability.
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Paragraph 0079-0082
(2017/08/04)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Organic electroluminescent compounds comprising a triphenylene conjugated to a five-ring fused heterocyclic system, as depicted in formula 1 are provided. Also provided is an organic electroluminescent device comprising these compounds. The organic electroluminescent compounds disclosed herein exhibit good luminous efficiency and excellent material life. They can be used to manufacture OLED devices very superior in terms of operating life and which consume less power due to improved power efficiency.
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