Thermal conductance of single-molecule junctions

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CUI, Longji, Sunghoon HUR, Zico Alaia AKBAR, Jan C. KLÖCKNER, Wonho JEONG, Fabian PAULY, Sung-Yeon JANG, Pramod REDDY, Edgar MEYHOFER, 2019. Thermal conductance of single-molecule junctions. In: Nature. 572(7771), pp. 628-633. ISSN 0028-0836. eISSN 1476-4687. Available under: doi: 10.1038/s41586-019-1420-z

@article{Cui2019-08Therm-46483, title={Thermal conductance of single-molecule junctions}, year={2019}, doi={10.1038/s41586-019-1420-z}, number={7771}, volume={572}, issn={0028-0836}, journal={Nature}, pages={628--633}, author={Cui, Longji and Hur, Sunghoon and Akbar, Zico Alaia and Klöckner, Jan C. and Jeong, Wonho and Pauly, Fabian and Jang, Sung-Yeon and Reddy, Pramod and Meyhofer, Edgar} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dspace:hasBitstream rdf:resource=""/> <dc:creator>Hur, Sunghoon</dc:creator> <dc:contributor>Meyhofer, Edgar</dc:contributor> <dc:creator>Klöckner, Jan C.</dc:creator> <dc:creator>Jang, Sung-Yeon</dc:creator> <dc:creator>Jeong, Wonho</dc:creator> <bibo:uri rdf:resource=""/> <dc:contributor>Jang, Sung-Yeon</dc:contributor> <dc:contributor>Reddy, Pramod</dc:contributor> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:available rdf:datatype="">2019-07-23T12:48:06Z</dcterms:available> <dc:creator>Reddy, Pramod</dc:creator> <dc:contributor>Pauly, Fabian</dc:contributor> <dc:rights>terms-of-use</dc:rights> <dcterms:isPartOf rdf:resource=""/> <dc:creator>Meyhofer, Edgar</dc:creator> <dc:language>eng</dc:language> <dc:creator>Pauly, Fabian</dc:creator> <dspace:isPartOfCollection rdf:resource=""/> <dcterms:abstract xml:lang="eng">Single-molecule junctions have been extensively used to probe properties as diverse as electrical conduction1-3, light emission4, thermoelectric energy conversion5,6, quantum interference7,8, heat dissipation9,10 and electronic noise11 at atomic and molecular scales. But a quantity of considerable current interest-the thermal conductance of a single-molecule junction-has eluded direct experimental determination, reflecting the considerable challenge of detecting minute heat currents at the picowatt level. Here we show that, when used in conjunction with a time-averaging measurement scheme to increase the signal-to-noise ratio, the custom-developed probes that enabled thermal conductance measurements of single-metal-atom junctions12 can also quantify the much lower thermal conductance of single-molecule junctions. Our experiments on prototypical Au-alkanedithiol-Au junctions, where the number of carbon atoms was varied from two to ten, confirm that thermal conductance is to a first approximation independent of molecular length, consistent with detailed ab initio simulations. We anticipate that our approach will enable systematic exploration of thermal transport in many other one-dimensional systems, such as short molecules and polymer chains, for which computational predictions of thermal conductance13-16 have remained experimentally inaccessible.</dcterms:abstract> <dc:contributor>Hur, Sunghoon</dc:contributor> <dc:creator>Akbar, Zico Alaia</dc:creator> <dc:creator>Cui, Longji</dc:creator> <dc:contributor>Jeong, Wonho</dc:contributor> <dc:contributor>Akbar, Zico Alaia</dc:contributor> <dcterms:hasPart rdf:resource=""/> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dcterms:title>Thermal conductance of single-molecule junctions</dcterms:title> <dcterms:rights rdf:resource=""/> <dcterms:issued>2019-08</dcterms:issued> <dc:contributor>Klöckner, Jan C.</dc:contributor> <dc:date rdf:datatype="">2019-07-23T12:48:06Z</dc:date> <dc:contributor>Cui, Longji</dc:contributor> </rdf:Description> </rdf:RDF>

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