Pyridine-fluorene organic electrophosphorescence main body luminescent material and preparation method thereof

A phosphorescent host, luminescent material technology, applied in luminescent materials, organic chemistry, electrical solid devices, etc., can solve the problem of ineffective use of triplet exciton energy, achieve large steric hindrance effect, mild conditions, good photoelectric performance Effect
CN102977006AInactive Publication Date: 2013-03-20NANJING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF POSTS & TELECOMM
Publication Date
2013-03-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a pyridine-fluorene organic electrophosphorescence main body luminescent material and a preparation method thereof, relating to new-generation organic luminescent display materials and technology. Due to the rigid structure, the luminescent material has high triplet energy level and favorable hole injection and transmission performance; and due to the three-dimensional large-volume steric hindrance effect, the luminescent material has stable amorphous state, and thus, can be widely used in organic light-emitting diodes. The specific design structure of the pyridine-fluorene main body material is disclosed in the specification. The invention particularly relates to a preparation method and application in organic light-emitting diode devices. The material has the advantages of high luminescence efficiency, high heat stability, high glass transition temperature and simple synthesis method, and can effectively inhibit concentration quenching and dimer luminescence. The preliminary structure as the main body material implements red-green-blue tricolor organic electroluminescent devices. The compounds have wide application prospects and huge commercial value in the aspects of electrophosphorescent main body materials.
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Description

technical field

[0001] The invention specifically relates to a preparation method based on substituting the 9-hydroxyl group of 9-hydroxyl-9-(2-pyridyl)fluorene with an aromatic ring to make it functional, and relates to the steps and raw materials used in the preparation process of these materials. Background technique

[0002] Since Deng Qingyun reported the organic light-emitting diodes with high brightness and low voltage and sandwich structure in 1987, organic light-emitting diodes, as the next generation flat panel display and solid-state lighting technology, have been highly valued by the majority of scientific workers and greatly appreciated by industrial elites. Research enthusiasm. Compared with displays made of inorganic materials, organic electroluminescent display devices have many advantages beyond their reach, such as: wide source of materials, low energy consumption, light weight, small size, simple manufacturing process, high contrast, wide viewing angle, an...

Claims

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