Efficient red light electroluminescence material processed by solution using naphthothiadiazole as luminous center

An electroluminescent material, a technology of naphthothiadiazole, applied in the direction of luminescent materials, circuits, electrical components, etc.
CN101591531AInactive Publication Date: 2009-12-02JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JILIN UNIV
Publication Date
2009-12-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the field of organic luminescence, and particularly relates to a red light electroluminescence material using naphthothiadiazole as a luminous center. The red light electroluminescence material can be prepared into a high electroluminescence film used for an organic electroluminescence device by using a solution processing method or an electrochemical polymerization method. The luminous center connected with an electroactive unit consists of an efficient naphthothiadiazole red light unit and efficient dark-blue light emitting units at two sides. The dark-blue light emitting units are fluorene, biphenyl, terphenyl, naphthalene, anthracene, phenanthrene and derivatives formed by mutually bonding the substances. The electroactive unit is carbazole, thiofuran, pyrrole, ethylene, ethyne, phenylamine, diphenylamine or triphenylamine. A connecting chain of the electroactive unit and the light emitting unit is an alkyl chain, an oxygen chain or an alkoxyl chain, and the electroactive unit and the light emitting unit also can be directly connected. The luminous efficiency of a device using the red light material reaches 5.8cd / A, and has high level in the red light devices prepared by electrochemical deposition.
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Description

technical field

[0001] The invention belongs to the field of organic luminescence, and specifically relates to a red photoluminescent material with electroactive groups, which uses naphthothiadiazole as a luminescent center. The red photoluminescent material can be processed by a solution, Electroluminescent thin films with high luminous efficiency can also be prepared by means of electrochemical polymerization, and then applied to organic electroluminescent devices. Background technique

[0002] Organic / polymer electroluminescent devices have been developed by leaps and bounds in the past ten years. Since 2000, OLED, a new flat-panel display technology, has received great attention from the industry and has begun to enter the stage of industrialization.

[0003] The compounds used to fabricate OLED devices are mainly divided into two categories: small molecules based on vacuum evaporation and conjugated polymers based on solution processing. Vacuum evaporation technology ...

Claims

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