Nitrogen-containing compound and electronic component and electronic device using the same

Abstract

The present application relates to a nitrogen-containing compound. The structural formula of the nitrogen-containing compound is shown in the following formula: wherein, ring A and ring B are each independently selected from a benzene ring or a fused aromatic ring with 10 to 14 ring carbon atoms , and at least one of ring A and ring B is selected from fused aromatic rings with 10 to 14 ring carbon atoms; L is selected from single bond, substituted or unsubstituted arylene with 6 to 30 carbon atoms A group, a substituted or unsubstituted heteroarylene group with 3-30 carbon atoms; Het is a substituted or unsubstituted nitrogen-containing heteroaryl group with 3-60 carbon atoms. The nitrogen-containing compound of the present application can improve the luminous efficiency of an organic electroluminescent device, and improve the conversion efficiency of a photoelectric conversion device using the nitrogen-containing compound.

Description

technical field [0001] The application belongs to the technical field of organic materials, and specifically provides a nitrogen-containing compound and electronic components and electronic devices using the same. Background technique [0002] An organic light-emitting element is a representative example of an organic electronic element. In general, the organic light emitting phenomenon refers to a phenomenon in which electrical energy is converted into light energy by using an organic substance. An organic light emitting element utilizing an organic light emitting phenomenon generally has a structure including an anode and a cathode and an organic layer therebetween. Among them, in order to improve the efficiency and stability of the organic light-emitting element, the organic layer is often formed by a multilayer structure composed of different substances, for example, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an ...

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Problems solved by technology

[0003] Generally speaking, electron transport materials are compounds with electron-deficient nitrogen-containing heterocyclic groups. Most of them have high electron affinity, so they have a strong ability to accept electrons. However, compared with hole transport materials, The electron mobility of common electron transport materials, such as octahydroxyquinoline aluminum, is much lower than the hole mobility of hole transport materials, so in OLED devices, on the one hand, it will lead to the imbalance of carrier injection and transport. The recombination probability of holes and electrons is reduced, thereby reducing the luminous efficiency of the device. On the other hand, electron transport materials with lower electron mobility will lead to an increase in the operating voltage of the device, thereby affecting power efficiency and detrimental to energy saving.

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