Compound taking benzo[c]cinnoline as receptor and application thereof

Abstract

The invention discloses a compound taking benzo[c]cinnoline as a receptor, and belongs to the technical field of organic electroluminescent functional materials and devices. The structural general formula of the compound is shown as a formula (I), and in the formula (I), D1 and D2 are the same and are selected from substituted or unsubstituted carbazolyl, phenoxazinyl, phenazinyl, phenoxazinyl, phenothiazinyl or acridinyl electron donating groups. The invention also provides an application of the compound taking benzo[c]cinnoline as the receptor in an organic electroluminescent device and theorganic electroluminescent device. The compound taking benzo[c]cinnoline as the receptor provided by the invention is a brand-new compound formed by introducing a specific electron-donating group at aspecific position for modification, and has relatively good energy transmission capability and charge transmission capability; the luminescent stability of the light emitting device can be remarkablyimproved, and the compound can be widely applied to OLED light emitting devices and display devices to be used as a light emitting layer main body material or a thermal active delayed fluorescence (TADF) luminescent material. The structural general formula is shown as a formula (I) shown in the specification.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescent functional materials and devices, and specifically relates to a compound with benzo[c]cinnoline as an acceptor and its application. Background technique [0002] As a self-luminous electronic component, the light-emitting mechanism of organic light-emitting diodes (OLED: Organic Light Emission Diodes) display and lighting components is a new type of direct conversion of electrical energy into light energy with the help of organic semiconductor functional materials under the action of a DC electric field. Photoelectric information technology. Its luminous color can be a single red, green, blue, yellow light or a combination of white light. The biggest feature of OLED light-emitting display technology is ultra-thin, fast response, ultra-lightweight, surface-emitting and flexible display. It can be used to manufacture monochrome or full-color displays. As a new light source techno...

AI Technical Summary

Problems solved by technology

The structure of TADF materials is generally composed of electron-donating groups-electron-withdrawing groups connected by π bonds, but there are very few types of electron-withdrawing groups that can be used at present, especially there are few high-quality TADF blue light materials, a

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