电聚合罗丹明-咔唑二元化合物中罗丹明的氧化电氟色性

IF 4 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals Pub Date : 2024-11-10 DOI:10.1016/j.synthmet.2024.117779

Jennifer Calderon-Mora , Baptiste Maillot , Jean-Frédéric Audibert , Philippe Decorse , Isabelle Bonnamour , Roxanne Mollandin de Boissy , Florian Guier , Ulrich Darbost , Vitor Brasiliense , Fabien Miomandre

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引用次数: 0

摘要

我们合成了罗丹明-咔唑二元化合物，并通过电聚合生成了薄膜。我们对所生成聚合物的吸收和发射光谱电化学特性进行了研究。我们发现，罗丹明单元的发光被咔唑分子部分淬灭，而这种淬灭在氧化过程中会得到强烈增强。我们证明了两种氧化还原状态之间发射强度的可逆转换，但其稳定性与聚合介质中的薄膜厚度和咔唑比例密切相关。这种发光淬灭可用于跟踪电聚合反应，因为一旦氧化偶联反应开始，发光强度就会强烈下降。

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Oxidative electrofluorochromism of rhodamine in electropolymerized rhodamine-carbazole dyads

A rhodamine-carbazole dyad has been synthesized and electropolymerized to generate thin films. The spectroelectrochemical properties of the resulting polymer are investigated both in absorption and emission. We show that the luminescence of the rhodamine unit is partially quenched by the carbazole moiety and this quenching is strongly enhanced upon oxidation. A reversible switch of the emission intensity between two redox states is demonstrated, but the stability is strongly dependent on the film thickness and proportion of carbazole in the polymerization medium. This luminescence quenching can be used to follow the electropolymerization reaction since a strong decrease of intensity occurs as soon as the oxidative coupling reaction starts.

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来源期刊

Synthetic Metals 工程技术-材料科学：综合

CiteScore

8.30

自引率

4.50%

发文量

189

审稿时长

33 days

期刊介绍： This journal is an international medium for the rapid publication of original research papers, short communications and subject reviews dealing with research on and applications of electronic polymers and electronic molecular materials including novel carbon architectures. These functional materials have the properties of metals, semiconductors or magnets and are distinguishable from elemental and alloy/binary metals, semiconductors and magnets.