Ruthenium complex with aggregation-induced phosphorescence enhancement properties, its preparation method and application

A ruthenium complex and aggregate state technology is applied in the application field of preparing electroluminescent devices, which can solve the problems of increasing the complexity and difficulty of devices, prone to phase separation, low luminous efficiency and the like, and achieves improving the electroluminescent efficiency of devices. , the effect of reducing production costs and simplifying the preparation process
CN106432353BActive Publication Date: 2018-10-12南通北外滩建设工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
南通北外滩建设工程有限公司
Publication Date
2018-10-12

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Abstract

The invention discloses a ruthenium complex with aggregation state induced phosphorescence enhancement characteristics, its preparation method and application. The ruthenium complex has a structure shown in formula I: wherein, N^N bidentate ligand is the first ligand, X^X bidentate ligand is the second ligand, and the first ligand includes 2, 2-bipyridine or 1,10-phenanthroline, the second ligand includes 2,2-distyrylbenzene derivatives. The ruthenium complex can emit strong phosphorescence in an aggregated state, and when used to prepare electroluminescent devices, it is not necessary to dope it as a guest into the host material, thereby simplifying the device preparation process and reducing device manufacturing costs. The electroluminescence efficiency of the device is improved, which is beneficial to industrialization. At the same time, the method for preparing the ruthenium complex provided by the invention is simple, the conditions are easy to control, and it is convenient for large-scale implementation.
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Description

technical field

[0001] The invention specifically relates to a ruthenium complex with aggregation-induced phosphorescence enhancement characteristics, its preparation method and application, such as application in the preparation of electroluminescent devices, and belongs to the technical field of photoelectric materials. Background technique

[0002] Traditional luminescent materials have strong emission intensity and high quantum yield in dilute solution. However, in high-concentration solutions, especially in aggregated states such as thin films and crystals, the energy of molecules in the excited state is attenuated through non-radiative pathways due to the strong intermolecular interactions, resulting in a decrease in the luminous efficiency of the luminescent material. A research group has reported that a series of silacyclic polyene compounds have the characteristics of aggregation-induced fluorescence emission. The aggregation-induced fluorescent materials solve the ...

Claims

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