A smart nanofiber film based azobenzene moiety with reversible photoresponsive patterning ability for information storage

IF 4.2 3区工程技术 Q2 CHEMISTRY, APPLIED Dyes and Pigments Pub Date : 2025-09-01 Epub Date: 2025-04-17 DOI:10.1016/j.dyepig.2025.112834

Yuye Yan, Kang Zhang, Luyang Sun, Qinqin Zhang, Yao Meng, Haoran Cheng, Xingrong Zhang, Ruiyang Zhao, Fusheng Liu

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Abstract

Information storage and security have consistently been critical concerns in modern society, and the advancement of related chemical storage systems continues to present significant challenges. The azobenzene molecule exhibits unique optical properties by changing colour before and after UV irradiation. In this paper, the nanofiber film (AZO-PVDF) has been produced by combining specifically structured azobenzene molecule (3F-Azo) with polyvinylidene fluoride (PVDF) through electrospinning technology. In particular, its potential application in the field of information storage has been attracted attention. Nanofiber films with different compositions have been successfully prepared by precisely controlling the 3F-Azo/PVDF ratio and the rotating speed during electrospinning. The analysis results show that the identification precision of film patterning has been significantly improved by optimizing the 3F-Azo/PVDF ratio. At the same time, the adjustment of the rotating speed could refine the fiber diameter and increase the specific surface area, thereby improving the isomerization property of the films. These nanofiber films show a wide application prospect in the fields of rewritable optical patterns. The research results broaden the scope of application of electrostatic spinning technology for information storage technology, secure printing and smart packaging.

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一种基于偶氮苯片段的智能纳米纤维薄膜，具有可逆的光响应模式能力，用于信息存储

信息存储和安全一直是现代社会关注的关键问题，相关化学品存储系统的发展仍然面临着重大挑战。偶氮苯分子在紫外线照射前后发生颜色变化，表现出独特的光学性质。本文采用静电纺丝技术，将特定结构的偶氮苯分子（3F-Azo）与聚偏氟乙烯（PVDF）结合，制备了纳米纤维薄膜（AZO-PVDF）。特别是其在信息存储领域的潜在应用备受关注。通过精确控制静电纺丝过程中3F-Azo/PVDF的比例和旋转速度，成功制备了不同成分的纳米纤维薄膜。分析结果表明，优化3F-Azo/PVDF比例可显著提高薄膜图案的识别精度。同时，调整转速可以细化纤维直径，增加比表面积，从而提高薄膜的异构化性能。这些纳米纤维薄膜在可重写光学图案领域具有广阔的应用前景。研究成果拓宽了静电纺丝技术在信息存储技术、安全印刷、智能包装等方面的应用范围。

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来源期刊

Dyes and Pigments 工程技术-材料科学：纺织

CiteScore

8.20

自引率

13.30%

发文量

933

审稿时长

33 days

期刊介绍： Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied. Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media. The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.