一种超长室温磷光材料及其制备方法和应用

The preparation of aluminum/phenylalanine phosphorescent materials by hydrothermal polymerization solves the problems of short phosphorescence life and low yield in existing technologies, and realizes the low-cost large-scale production of long-life phosphorescent materials for application in information encryption and anti-counterfeiting fields.

CN117736453BActive Publication Date: 2026-07-17EAST CHINA UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
EAST CHINA UNIV OF SCI & TECH
Filing Date
2023-12-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing room temperature phosphorescent materials have short phosphorescence lifetimes, low yields, and high production costs, making them difficult to widely apply in the fields of information encryption and optoelectronic devices.

Method used

Aluminum/phenylalanine phosphorescent materials were prepared at high temperature using a hydrothermal polymerization method. By controlling the ratio of aluminum sulfate to phenylalanine and the heating conditions, ultra-long-life phosphorescent materials were synthesized, and their phosphorescence color was controlled by sodium hydroxide treatment.

Benefits of technology

The preparation of long-life phosphorescent materials has been achieved, which have time-dependent phosphorescent color characteristics. The process is simple, low-cost, and high-yield, making them suitable for information encryption and anti-counterfeiting applications.

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Abstract

本发明提供一种超长室温磷光材料及其制备方法和应用,将硫酸铝和苯丙氨酸溶于水中,通过水热聚合法在高温下制得铝 / 苯丙氨酸磷光材料粉末,加热温度为140‑200℃,所述硫酸铝和苯丙氨酸的物质的量比为6:1‑160:1。本发明提供的铝 / 苯丙氨酸磷光材料在停止紫外光激发后,可以发射长寿命室温磷光,在适当条件下所合成产物具备时间依赖的磷光颜色特点,且产物经氢氧化钠处理后,可以实现对磷光发射、寿命以及效率等磷光性能的调控。其制备方法操作流程简单、专业门槛低、重现性高以及产量大,为大规模、低成本合成超长金属有机聚合物磷光材料以应用于数据加密、多维防伪等领域提供了有力的策略。
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