1210469-11-6Relevant articles and documents
Organic compound, and organic electroluminescent device and electronic device using the same
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Paragraph 0129-0131, (2021/11/10)
The present invention relates to an organic compound and an organic electroluminescent device and an electronic device using the same, wherein the organic compound has a structure formed by combining an indole carbazole-based planar conjugated group in a fused manner and a dibenzofuran substituted with an aryl group. The structure has higher hole mobility and higher energy transfer efficiency, and is suitable for being used as a light-emitting host material in an organic electroluminescent device. When the organic compound is used as a light emitting host material in an organic electroluminescent device, the light emitting efficiency and the service life of the device can be effectively improved, and the working voltage is reduced.
Hole transport material and organic electroluminescent device using same
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Paragraph 0051-0056, (2021/01/04)
The invention discloses a hole transport material and an organic electroluminescent device using the same, which relate to the technical field of organic electroluminescence. The structural formula isshown in the specification. The hole transport material not only can improve the carrier transport efficiency, but also can improve the luminous efficiency of the device. Compared with a contrast example, the prepared organic electroluminescent device has the advantages that the voltage is reduced by 25-35%, the luminous efficiency is improved by nearly one time, and the service life is greatly prolonged, so that the driving voltage of the device can be greatly reduced by the hole transport material, the consumption of electric energy is effectively reduced, the luminous efficiency is remarkably improved, and the service life of the light-emitting device is remarkably prolonged; lighting equipment and electronic display equipment prepared from the hole transport material have the effectsof high brightness, high efficiency and low voltage, screen dark spots can be effectively avoided, and the performance is more excellent.
Fused ring organic compound and mixture and organic electronic device comprising same
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, (2019/05/15)
The invention relates to a fused ring organic compound and a mixture and organic electronic device comprising the same. The fused ring organic compound shown in a general formula (I) has excellent electron transport properties and stability, material synthesis is simple, and when a synthesized material is applied to a device host material, the luminous efficiency and stability of the device can beimproved, and the production cost of the device can be reduced. In addition, a co-host can be formed through cooperation of the fused ring organic compound with another host with a hole transport property or a bipolar property, the electroluminescent efficiency and the service life of the device can be improved further.