基于5H-[1,2,5]噻二唑[3,4-f]苯并三唑（BTD-BTZ）的近红外发射光波导及其光物理研究

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-06-09 DOI:10.1016/j.dyepig.2025.112949

Abelardo Sánchez-Oliva , Jesús Herrera Herreros , Abel de Cózar , Cristina Martín , M. Victoria Gomez , Pilar Prieto , Iván Torres-Moya

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引用次数: 0

摘要

在这项工作中，合成了一系列新的5H-[1,2,5]噻二唑[3,4-f]苯并三唑（BTD-BTZ）衍生物。中心核心战略性地结合了苯并噻唑（BTD）和苯并三唑（BTZ）基团，实现了红移发射，从而在近红外区域（NIR）产生荧光。此外，这些材料在近红外区域表现出良好的光波导行为，BTD-BTZ2和BTD-BTZ3的发射最大值高于800 nm，进一步突出了它们在先进光子应用方面的潜力。据我们所知，这是首次报道的BTD-BTZ衍生物在该光谱范围内表现出这种波导能力的实例。全面的光物理表征，包括溶剂化变色和变色的研究，同时提出了三个合成衍生物的比较分析。理论计算也支持了实验结果。卓越的发射特性和近红外波导性能凸显了这些BTD-BTZ衍生物在电信、生物成像和光学传感领域的前沿应用潜力。

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Near-infrared emissive optical waveguides and photophysical insights based on 5H-[1,2,5]thiadiazolo[3,4-f]benzotriazole (BTD-BTZ)

In this work, a novel series of three 5H-[1,2,5]thiadiazolo[3,4-f]benzotriazole (BTD-BTZ) derivatives has been synthesized. The central core strategically combines benzothiadiazole (BTD) and benzotriazole (BTZ) moieties to achieve a red-shifted emission, resulting in fluorescence in near-infrared region (NIR). Additionally, these materials demonstrate promising optical waveguiding behavior in the NIR region with emission maxima higher than 800 nm for BTD-BTZ2 and BTD-BTZ3, further highlighting their potential for advanced photonic applications. To the best of our knowledge, these are the first reported instances of BTD-BTZ derivatives exhibiting such waveguiding capabilities within this spectral range. A comprehensive photophysical characterization, including solvatochromism and halochromism studies, is presented, alongside a comparative analysis of the three synthesized derivatives. Theoretical calculations were also performed to support experimental results. The exceptional emission properties and NIR waveguiding behaviour underscores the potential of these BTD-BTZ derivatives for cutting-edge applications in telecommunications, bioimaging, and optical sensing.

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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.