Pyridoimidazole derivatives and application thereof in organic light-emitting devices (OLEDs)

A technology of organic boronic acid and reaction, which is applied in the field of organic electroluminescence materials, and can solve the problem that the position of the emission peak is biased towards ultraviolet
CN102070632BInactive Publication Date: 2013-09-11TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2013-09-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses pyridoimidazole derivatives and application thereof in organic light-emitting devices (OLEDs). The structural formula of the compounds is shown in the formula I in the specification. As organic light-emitting materials, the compounds can be used for preparing the OLEDs. The OLEDs comprise light-emitting layers, wherein the light-emitting layers contain at least a pyridoimidazole derivative to serve as the main material and contain pyridoimidazole derivatives or a light-emitting layer formed by the pyridoimidazole derivatives, pyridoimidazole derivatives or an electron transport layer formed by the pyridoimidazole derivatives and pyridoimidazole derivatives or a hole blocking layer formed by the pyridoimidazole derivatives. The invention further relates to equipment comprising the OLEDs. The pyridoimidazole derivatives provided by the invention have appropriate triplet energy levels and obviously improve energy utilization, and when the pyridoimidazole derivatives are used for preparing the OLEDs, the prepared devices have satisfactory brightness, current density and efficiency under high current density.
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Description

technical field

[0001] The invention belongs to the field of organic electroluminescent materials, and in particular relates to a class of pyridoimidazole derivatives and a synthesis method thereof, as well as the use of the compounds in preparing organic electroluminescent devices. Background technique

[0002] In recent years, the research on white light organic electroluminescent materials and devices has received great attention from international academic circles, governments and industries. Countries and regions such as the United States, Europe, Japan, etc. have launched major research programs (Next Generation Lighting Initiative in the United States, OLLA in the European Union). , Japan 21Century Lighting Program) to strengthen research in this field, the reasons are: First, white organic electroluminescent technology (WOLED), together with inorganic LED technology, may be one of the most important solid-state light source technologies in the new generation. Accordi...

Claims

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