Publikation: Manipulating π-π Interactions between Single Molecules by Using Antenna Electrodes as Optical Tweezers
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National Natural Science Foundation of China: 91950116
National Natural Science Foundation of China: 11804170
National Natural Science Foundation of China: 12174201
National Natural Science Foundation of China: 21973081
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Via conductance measurements of thousands of single-molecule junctions, we report that the 𝜋–𝜋 coupling between neighboring aromatic molecules can be manipulated by laser illumination. We reveal that this optical manipulation originates from the optical plasmonic gradient force generated inside the nanogaps, in which the gapped antenna electrodes act as optical tweezers pushing the neighboring molecules closer together. These findings offer a nondestructive approach to regulate the interaction of the molecules, deepening the understanding of the mechanism of 𝜋–𝜋 interaction, and open an avenue to manipulate the relative position of extremely small objects down to the scale of single molecules.
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XU, Xiaona, Qiang QI, Qihong HU, Liang MA, Ramya EMUSANI, Surong ZHANG, Xueyan ZHAO, Min TAN, Adila ADIJIANG, Wei ZHANG, Ziwei MA, Guangjun TIAN, Elke SCHEER, Dong XIANG, 2024. Manipulating π-π Interactions between Single Molecules by Using Antenna Electrodes as Optical Tweezers. In: Physical Review Letters. American Physical Society (APS). 2024, 133(23), 233001. ISSN 0031-9007. eISSN 1079-7114. Verfügbar unter: doi: 10.1103/physrevlett.133.233001BibTex
@article{Xu2024-12-02Manip-71876, title={Manipulating π-π Interactions between Single Molecules by Using Antenna Electrodes as Optical Tweezers}, year={2024}, doi={10.1103/physrevlett.133.233001}, number={23}, volume={133}, issn={0031-9007}, journal={Physical Review Letters}, author={Xu, Xiaona and Qi, Qiang and Hu, Qihong and Ma, Liang and Emusani, Ramya and Zhang, Surong and Zhao, Xueyan and Tan, Min and Adijiang, Adila and Zhang, Wei and Ma, Ziwei and Tian, Guangjun and Scheer, Elke and Xiang, Dong}, note={Article Number: 233001} }
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