Blue organic long-afterglow flexible thin film material and preparation method and application thereof

By combining epoxy resin and aniline carboxylic acid derivatives, a blue organic flexible film with long afterglow and high stability was prepared, which solved the problem of insufficient environmental stability of blue organic room temperature phosphorescent materials and enabled its application in complex environments.

CN122145970APending Publication Date: 2026-06-05HEBEI PETROLEUM VOCATIONAL & TECH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI PETROLEUM VOCATIONAL & TECH UNIV
Filing Date
2026-03-09
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing blue organic room temperature phosphorescent materials are unstable in practical applications due to their high energy state being susceptible to the effects of oxygen and moisture, which limits their application in complex environments.

Method used

Using epoxy resin as the main material and specific aniline carboxylic acid derivatives as guest materials, a blue organic long-afterglow flexible film was prepared by mixing and coating and curing at room temperature. The excellent sealing and stability of epoxy resin, combined with the luminescent properties of aniline carboxylic acid derivatives, formed a film with long afterglow and high stability.

Benefits of technology

The prepared blue organic long-afterglow flexible thin film material has good flexibility and environmental stability, with an afterglow time of up to 3 seconds. It is suitable for flexible display, information encryption and anti-counterfeiting and other fields, simplifying device structure and reducing cost.

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Abstract

The application belongs to the technical field of organic flexible light-emitting materials, and particularly relates to a blue organic long-afterglow flexible film material and a preparation method and application thereof. The blue organic long-afterglow flexible film material is mainly prepared by coating and curing after mixing of a host material and a guest material; the host material is epoxy resin; and the guest material is or The blue organic long-afterglow flexible film material provided by the application takes the flexible epoxy resin as the host material and a specific aniline carboxylic acid derivative as the guest material, and the flexible film material is prepared by a simple coating method. The blue afterglow time of the flexible film material can reach 3s at most, the flexible film material has good afterglow light-emitting performance, and simultaneously has excellent flexibility and environmental stability, and shows application potential in the field of information encryption and anti-counterfeiting.
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