Understanding Spatial Distributions of Dye Molecules Coupled to the Surface Lattice Resonance Mode through Electrochemical Reaction Control
Understanding Spatial Distributions of Dye Molecules Coupled to the Surface Lattice Resonance Mode through Electrochemical Reaction Control
复制标题
通过电化学反应控制了解与表面晶格共振模式耦合的染料分子的空间分布
DOI：
10.1021/acs.jpclett.2c03442
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Murakoshi Kei
中科院分区：
文献类型：
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作者：
Hayashi Takahiro;Minamimoto Hiro;Murakoshi Kei
强耦合，即光-物质相互作用，导致化学动力学的能量格局发生变化，从而导致反应路径的调制。在本研究中，我们实现了分散在聚合物薄膜中的染料分子与等离子体晶格阵列上激发的表面晶格共振模式之间的强耦合。此外，我们还通过引入电化学势控制方法成功地调节了耦合强度。由于染料分子发生可逆的电氧化还原反应，染料分子的偶合强度可逆地降低和增加。重要的是，通过使用不同的聚合物膜厚度来阐明耦合到晶格共振模的分子的空间分布。我们目前控制强耦合态的电化学方法代表了一种很有前途的方法来调节体系的光吸收性质。
The strong coupling, which is the light–matter interaction, leads to changes in the energy landscape of the chemical dynamics, resulting in the modulation of the reaction pathways. In this study, we achieved strong coupling between dye molecules dispersed in the polymer films and the surface lattice resonance mode, which is excited on plasmonic lattice arrays. In addition, we successfully tuned the coupling strength by introducing the electrochemical potential control method. Reversible decreases and increases in the coupling strength were observed as a result of the reversible electrochemical redox reactions of dye molecules. It is important that the spatial distribution of the molecules coupled to the lattice resonance mode was clarified by using various polymer film thicknesses. Our present electrochemical method for controlling strong coupling states represents a promising method for tuning the light-absorption properties of systems.