Tunable multicolor afterglow including white light emission from poly (acrylic acid)-based room temperature phosphorescence materials via phosphorescence FRET

被引：15

作者：

Kong, Liuqi ^{[1
]}

Zhu, Yan ^{[1
]}

Sun, Shaochen ^{[1
]}

Li, Hongye ^{[1
]}

Wu, Jiarui ^{[1
]}

Tao, Farong ^{[1
]}

Wang, Liping ^{[1
]}

Li, Guang ^{[1
]}

机构：

[1] Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng 252059, Peoples R China

来源：

DYES AND PIGMENTS | 2023年 / 214卷

基金：

中国国家自然科学基金;

关键词：

Room temperature phosphorescence; Energy transfer; Multicolor afterglow; White light emission; Information encryption; CARBON DOTS;

D O I：

10.1016/j.dyepig.2023.111242

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Room temperature phosphorescence (RTP) materials with multicolor afterglow emission have important appli-cation potential in multicolor display and anti-counterfeiting. However, the preparation of polymer-based multicolor RTP materials still faces challenges. In this work, we prepare a kind of ultralong RTP materials by facilely doping phthalimide (Pth) into poly (acrylic acid) (PAA) matrices based on the hydrogen-bonding interaction. Attributed to the wide phosphorescence emission band of PAA-Pth, the ternary doping systems are constructed by using PAA-Pth as donors and commercially available fluorescent dyes rhodamine B (RhB) or fluorescein (FL) as acceptors, which display multicolor afterglow from cyan to red and green through efficient phosphorescence Fo center dot rster resonance energy transfer (FRET). More impressively, the quaternary doping systems PAA-Pth-RhB-FL with different molar ratios of FL exhibit tunable multicolor afterglow, including nearly white afterglow emission. Due to the different FRET efficiency of PAA-based multicolor RTP materials at different excitation wavelengths, they are successfully applied in color information encryption.

引用

页数：8

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