The critical power to maintain thermally stable molecular junctions

Yanlei Wang and Zhiping Xu ()
Additional contact information
Yanlei Wang: Applied Mechanics Laboratory, and Center for Nano and Micro Mechanics, Tsinghua University
Zhiping Xu: Applied Mechanics Laboratory, and Center for Nano and Micro Mechanics, Tsinghua University

Nature Communications, 2014, vol. 5, issue 1, 1-6

Abstract: Abstract With the rise of atomic-scale devices such as molecular electronics and scanning probe microscopies, energy transport processes through molecular junctions have attracted notable research interest recently. In this work, heat dissipation and transport across diamond/benzene/diamond molecular junctions are explored by performing atomistic simulations. We identify the critical power Pcr to maintain thermal stability of the junction through efficient dissipation of local heat. We also find that the molecule–probe contact features a power-dependent interfacial thermal resistance RK in the order of 109 kW−1. Moreover, both Pcr and RK display explicit dependence on atomic structures of the junction, force and temperature. For instance, Pcr can be elevated in multiple-molecule junctions, and streching the junction enhances RK by a factor of 2. The applications of these findings in molecular electronics and scanning probing measurements are discussed, providing practical guidelines in their rational design.

Date: 2014
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms5297 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5297

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms5297

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().