Double-phase organic fluorescent materials with relatively strong fluorescence in solid state and liquid state and preparation method thereof

A fluorescent material, solid-state technology, applied in the fields of luminescent materials, fluorescence/phosphorescence, semiconductor/solid-state device manufacturing, etc., can solve the problems of fluorescence quenching, excited state energy dissipation, limitation, etc., achieves simple operation, simple preparation method, The effect of high fluorescence quantum efficiency
CN107759504AInactive Publication Date: 2018-03-06BEIJING INSTITUTE OF TECHNOLOGYGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2018-03-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides double-phase organic fluorescent materials with relatively strong fluorescence in the solid state and the solution state and a preparation method and application thereof. Particularly, the invention provides arylpyrrole derivative fluorescent materials shown as a general formula (TPP-R) and having relatively strong solid-state and solution-state two-phase fluorescence emission: FORMULA, wherein R is an electron-withdrawing group, an aldehyde group, cyano or an ester group. The invention further provides a preparation method of the aryl-substituted pyrrole derivative fluorescent materials. The prepared fluorescent materials have relatively high fluorescence quantum efficiency and significant solvent effect in the solid state and the liquid state, and the medium-polarity electron-withdrawing enables one of the fluorescent materials to have light-emitting characteristics in different aggregation morphologies. The fluorescent materials with relatively strong light-emitting characteristics in the solid state and the solution state have a good application prospect in organic light-emitting diodes, chemical detection, biological detection and other aspects.
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Description

technical field

[0001] The invention relates to a class of organic fluorescent materials and a preparation method thereof, in particular to a class of special fluorescent materials with strong fluorescence in both solid and solution states and good solvent effect and a preparation method thereof. Background technique

[0002] Organic light-emitting materials have received extensive attention due to their huge applications in many fields such as light-emitting diodes (LEDs), specific molecular recognition and tracking, photochemical sensors, and bioimaging. Traditional fluorescent materials will have strong fluorescence in a dilute solution state, but in a concentrated solution or solid film state, due to the π-π interaction between molecules, they form a close stack, resulting in most of the excited state energy being in the form of non-radiative In the form of dissipation, fluorescence quenching (ACQ) occurs; in the practical application of fluorescent materials, they often...

Claims

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