A kind of phosphorescent polymer material and its preparation method and application

A polymer material, epoxy polymer technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of oxygen consumption, vibration dissipation, etc., and achieve cheap raw materials, good stability, and high phosphorescence quantum yield Effect
CN111848927BActive Publication Date: 2021-06-29UNIV OF SCI & TECH BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Publication Date
2021-06-29

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Abstract

The invention provides a phosphorescent polymer material and its preparation method and application, and relates to the technical field of organic light-emitting materials and anti-counterfeiting materials, which can obtain a pure organic polymer material with high-efficiency and long-life room temperature phosphorescence properties, and realize a substantial extension of phosphorescence life At the same time, the quantum efficiency of phosphorescence is improved, the preparation is simple, the raw materials are cheap, and the stability is good; the method effectively suppresses the non-radiative attenuation of various organic phosphors through a dense three-dimensional epoxy polymer network, thereby achieving simultaneous realization in the polymer film. Ultra-long lifetime and high quantum yield; the absolute phosphorescent quantum yield of the prepared phosphorescent polymer material is more than 8.35%, the phosphorescence lifetime is more than 2.28s; the phosphorescence property retention time at room temperature is more than 7s. The technical scheme provided by the invention is applicable to the process of preparing room temperature phosphorescent materials.
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Description

【Technical field】

[0001] The invention relates to the technical field of organic luminescent materials and anti-counterfeiting materials, in particular to a phosphorescent polymer material and its preparation method and application. 【Background technique】

[0002] Ultra-long room temperature phosphorescent materials have unique advantages in information encryption, medical imaging, optical display and other fields due to their long-lasting phosphorescence. With the rapid development of organic optical displays and flexible sensors, pure organic ultralong room-temperature phosphorescent materials have become outstanding substitutes for conventional inorganic or organometallic phosphors due to their high transparency and low cost. Relevant researchers have proposed some methods to obtain pure organic ultra-long room temperature phosphorescent materials, such as crystallization engineering, H aggregates, host-guest interaction, deuteration and other methods. However, in these ...

Claims

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