Multicolor 3D afterglow structures with high precision and ultralong lifetimes based on carbazole-doped photocurable resins†

IF 6.4 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Materials Chemistry Frontiers Pub Date : 2025-07-23 DOI:10.1039/D5QM00369E

Rui Du, Zhengshuo Wang, Zhipeng Zhao, Huilong Liu, Shouchang Jiao, Yi Wu, Wenhui Li, Hua Yuan, Hanlin Ou and Dan Ding

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Abstract

The majority of current research on organic room-temperature phosphorescence (RTP) materials focuses on film or powder forms, with limited exploration into the fabrication of complex 3D structures with high precision and enhanced RTP properties. Herein, a general strategy is proposed to construct 3D RTP models with precise structures and ultralong lifetimes by micro-doping carbazole-based chromophores into photocurable standard resins (SRs) and combining them with photocurable 3D printing technology. The highly cross-linked and rigid microenvironment formed after the curing of SRs endows the carbazole-doped SRs with a long RTP lifetime of up to 1.8 s. Utilizing digital light processing 3D printing technology, a series of multidimensional RTP models with precise structures and ultralong lifetimes are constructed based on these carbazole-doped SRs. Given the superior tunability of 3D printing blueprints and the excellent RTP properties of the printed models, these multidimensional models demonstrate great application prospects in advanced anti-counterfeiting and encryption applications.

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基于咔唑掺杂光固化树脂的高精度和超长寿命的多色3D余辉结构

目前对有机室温磷光（RTP）材料的研究大多集中在薄膜或粉末形式，而对高精度和增强RTP性能的复杂3D结构的制造探索有限。本文提出了一种通过将咔唑基发色团微掺杂到光固化标准树脂（SRs）中，并将其与光固化3D打印技术相结合，构建具有精确结构和超长寿命的3D RTP模型的总体策略。硫化后形成的高交联刚性微环境赋予了掺杂咔唑的SRs较长的RTP寿命，最长可达1.8 s。利用数字光处理3D打印技术，构建了一系列具有精确结构和超长寿命的多维RTP模型。由于3D打印蓝图具有优越的可调性和打印模型具有优异的RTP特性，这些多维模型在先进的防伪和加密应用中具有广阔的应用前景。

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来源期刊

Materials Chemistry Frontiers Materials Science-Materials Chemistry

CiteScore

12.00

自引率

2.90%

发文量

313

期刊介绍： Materials Chemistry Frontiers focuses on the synthesis and chemistry of exciting new materials, and the development of improved fabrication techniques. Characterisation and fundamental studies that are of broad appeal are also welcome. This is the ideal home for studies of a significant nature that further the development of organic, inorganic, composite and nano-materials.