Aggregation-induced light-emitting molecule based on tetraphenylethylenes and preparation method and use thereof

A technology of aggregation-induced luminescence and tetraphenylethylene, which is applied in the fields of luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., to achieve the effects of high efficiency, simple preparation, and increased transmission capacity
CN104293350AInactive Publication Date: 2015-01-21WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV
Publication Date
2015-01-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an aggregation-induced light-emitting molecule based on tetraphenylethylenes and a preparation method and a use thereof. The aggregation-induced light-emitting molecule based on tetraphenylethylenes has a structure represented by the formula I or II. Through a Suzuki reaction, a pyrene nucleus is modified by applying four tetraphenylethylenes or derivatives thereof to obtain the target product. Pyrene and tetraphenylethylenes are in meta-position connection or methyl is added between pyrene and tetraphenylethylenes, to make a torsion angle between pyrene and tetraphenylethylenes increased, so that the degree of conjugation between pyrene and tetraphenylethylenes is reduced, and a spectrum is subjected to blue shift. The aggregation-induced light-emitting molecule based on tetraphenylethylenes has a good aggregation-induced light-emitting property, moreover, emits blue light, can be used as a blue-light organic light-emitting diode light-emitting layer material, and is simple in preparation.
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Description

technical field

[0001] The invention relates to a blue light material, in particular to a tetraphenylethylene-based aggregation-induced luminescence molecule, a preparation method thereof, and an application as a light-emitting layer material of a blue light organic light-emitting diode. Background technique

[0002] Organic Light Emitting Diode (OLED) was first invented in 1987 by Dr. Qingyun Deng of Eastman Kodak Company of the United States. Excellent features such as curved panels are considered to be the next generation of emerging application technologies for flat full-color displays. Among the three primary colors (red, green and blue) organic light-emitting materials, red and green materials have been able to meet the needs of commercialization, but efficient and stable blue materials are still very scarce, because the high energy gap of blue materials is not suitable for loading. The injection and transport of carriers into the light-emitting layer is unfavorable. ...

Claims

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