{"date_published":"2023-01-05T00:00:00Z","abstract":[{"text":"Understanding how molecular geometry affects the electronic properties of single-molecule junctions experimentally has been challenging. Typically, metal–molecule–metal junctions are measured using a break-junction method where electrode separation is mechanically evolving during measurement. Here, to probe the impact of the junction geometry on conductance, we apply a sinusoidal modulation to the molecular junction electrode position. Simultaneously, we probe the nonlinearity of the current–voltage characteristics of each junction through a modulation in the applied bias at a different frequency. In turn, we show that junctions formed with molecules that have different molecule–electrode interfaces exhibit statistically distinguishable Fourier-transformed conductances. In particular, we find a marked bias dependence for the modulation of junctions where transmission is mediated thorough the van der Waals (vdW) interaction. We attribute our findings to voltage-modulated vdW interactions at the single-molecule level.","lang":"eng"}],"volume":23,"publication_identifier":{"issn":["1530-6984"],"eissn":["1530-6992"]},"year":"2023","article_processing_charge":"No","citation":{"chicago":"Wei, Yujing, Liang Li, Julia E. Greenwald, and Latha Venkataraman. “Voltage-Modulated van Der Waals Interaction in Single-Molecule Junctions.” <i>Nano Letters</i>. American Chemical Society, 2023. <a href=\"https://doi.org/10.1021/acs.nanolett.2c04098\">https://doi.org/10.1021/acs.nanolett.2c04098</a>.","short":"Y. Wei, L. Li, J.E. Greenwald, L. Venkataraman, Nano Letters 23 (2023) 567–572.","mla":"Wei, Yujing, et al. “Voltage-Modulated van Der Waals Interaction in Single-Molecule Junctions.” <i>Nano Letters</i>, vol. 23, no. 2, American Chemical Society, 2023, pp. 567–72, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.2c04098\">10.1021/acs.nanolett.2c04098</a>.","ama":"Wei Y, Li L, Greenwald JE, Venkataraman L. Voltage-modulated van der waals interaction in single-molecule junctions. <i>Nano Letters</i>. 2023;23(2):567-572. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.2c04098\">10.1021/acs.nanolett.2c04098</a>","apa":"Wei, Y., Li, L., Greenwald, J. E., &#38; Venkataraman, L. (2023). Voltage-modulated van der waals interaction in single-molecule junctions. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.nanolett.2c04098\">https://doi.org/10.1021/acs.nanolett.2c04098</a>","ista":"Wei Y, Li L, Greenwald JE, Venkataraman L. 2023. Voltage-modulated van der waals interaction in single-molecule junctions. Nano Letters. 23(2), 567–572.","ieee":"Y. Wei, L. Li, J. E. Greenwald, and L. Venkataraman, “Voltage-modulated van der waals interaction in single-molecule junctions,” <i>Nano Letters</i>, vol. 23, no. 2. American Chemical Society, pp. 567–572, 2023."},"type":"journal_article","date_updated":"2024-11-25T14:49:19Z","quality_controlled":"1","publication_status":"published","month":"01","user_id":"68b8ca59-c5b3-11ee-8790-cd641c68093d","OA_type":"closed access","oa_version":"None","day":"05","_id":"17865","publisher":"American Chemical Society","intvolume":"        23","article_type":"original","status":"public","author":[{"first_name":"Yujing","full_name":"Wei, Yujing","last_name":"Wei"},{"full_name":"Li, Liang","first_name":"Liang","last_name":"Li"},{"last_name":"Greenwald","full_name":"Greenwald, Julia E.","first_name":"Julia E."},{"id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","last_name":"Venkataraman","orcid":"0000-0002-6957-6089","first_name":"Latha","full_name":"Venkataraman, Latha"}],"date_created":"2024-09-06T12:58:41Z","publication":"Nano Letters","title":"Voltage-modulated van der waals interaction in single-molecule junctions","pmid":1,"page":"567-572","issue":"2","external_id":{"pmid":["36602221"]},"extern":"1","language":[{"iso":"eng"}],"doi":"10.1021/acs.nanolett.2c04098"}