Organic compound and application thereof

Abstract

The invention provides an organic compound and application thereof. The compound provided by the invention has a deep LUMO energy level, and can reduce the potential barrier of electron transmission, improve the electron injection capability and effectively reduce the device voltage of an OLED; the compound has a deeper HOMO energy level, so holes can be effectively blocked, more hole-electrons are compounded in a light-emitting region, and higher light-emitting efficiency can be realized; and the compound is suitable for electron transport layer and/or hole barrier layer materials of OLED devices, and can reduce the voltage and power consumption of the devices, improve the luminous efficiency of the devices and prolong the service life of the devices, so the OLED devices have better comprehensive performance.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescent materials, and relates to an organic compound and its application. Background technique [0002] The electron transport material used in traditional electroluminescent devices is Alq3, but the electron mobility of Alq3 is relatively low (about l0 -6 cm 2 / Vs), which makes the electron transport and hole transport of the device unbalanced. With the commercialization and practical application of electroluminescent devices, people hope to obtain ETL materials with higher transmission efficiency and better performance. In this field, researchers have done a lot of exploratory work. [0003] LG Chem's WO 2007 / 011170 Al and CN 101003508A respectively disclose a series of derivatives of naphthimidazole and pyrene, which are used as electron transport and injection materials in electroluminescent devices to improve the luminous efficiency of the devices. [0004] In publication numbe...

AI Technical Summary

Problems solved by technology

Once the electron transport material is crystallized, the intermolecular charge transition mechanism will be different from the normal operation of the amorphous film mechanism, resulting in a decrease in the performance of electron transport, resulting in an imbalance in the mobility of electron

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