Supramolecular Assembly of Conjugated Polymers under Vibrational Strong Coupling
Supramolecular Assembly of Conjugated Polymers under Vibrational Strong Coupling
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振动强耦合下共轭聚合物的超分子组装
DOI：
10.1002/ange.202105840
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发表时间：
2021
影响因子：
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通讯作者：
Ebbesen Thomas W.
中科院分区：
文献类型：
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作者：
Joseph Kripa;Kushida Soh;Smarsly Emanuel;Ihiawakrim Dris;Thomas Anoop;Paravicini‐Bagliani Gian Lorenzo;Nagarajan Kalaivanan;Vergauwe Robrecht;Devaux Eloise;Ersen Ovidiu;Bunz Uwe H. F.;Ebbesen Thomas W.
强耦合在影响化学反应和通过改变系统的能量景观来调整材料性质方面起着重要作用。本文研究了振动强耦合对超分子结构的影响。为此，已知形成凝胶的刚性杆共轭聚合物与其溶剂在微流体IR法布里-珀罗腔中强烈偶联在一起。吸收和荧光研究表明，在这种合作VSC下的自组装的大修改。电子显微镜证实，在这种情况下，超分子形态是完全不同的观察到的情况下，强耦合。此外，自组装动力学被改变并且取决于VSC下的溶剂振动。将结果与自组装的动力学同位素效应进行比较，以帮助澄清强耦合下不同参数的作用。这些发现表明，VSC是一个有价值的新工具，用于控制超分子组装体的分子和材料科学的广泛影响。
Strong coupling plays a significant role in influencing chemical reactions and tuning material properties by modifying the energy landscapes of the systems. Here we study the effect of vibrational strong coupling (VSC) on supramolecular organization. For this purpose, a rigid‐rod conjugated polymer known to form gels was strongly coupled together with its solvent in a microfluidic IR Fabry–Perot cavity. Absorption and fluorescence studies indicate a large modification of the self‐assembly under such cooperative VSC. Electron microscopy confirms that in this case, the supramolecular morphology is totally different from that observed in the absence of strong coupling. In addition, the self‐assembly kinetics are altered and depend on the solvent vibration under VSC. The results are compared to kinetic isotope effects on the self‐assembly to help clarify the role of different parameters under strong coupling. These findings indicate that VSC is a valuable new tool for controlling supramolecular assemblies with broad implications for the molecular and material sciences.