Efficient mechanical modulation of the phonon thermal conductivity of MoSnanowires
Nanoscale, ISSN: 2040-3372, Vol: 14, Issue: 8, Page: 3078-3086
2022
- 21Citations
- 2Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations21
- Citation Indexes21
- 21
- CrossRef15
- Captures2
- Readers2
Article Description
Mo6S6 nanowires are emerging as key building blocks for flexible devices and are competitive with carbon nanotubes due to easier separation and functionalization. Here, it is reported the phonon thermal conductivity (κ) of Mo6S6 nanowires via molecular dynamics simulations. It shows a large tunability of low-frequency phonon thermal conductivity (κlf)Amax from 27.2-191 W (m K)-1, an increase of around 702% via mechanical strain. Below critical tension/torsion strain, their phonon thermal conductivity monotonically reduces/enlarges; whereas above this value, an inverse trend is identified. On the other hand, Mo6S6 nanowires show unusual auxetic behavior. The transitions involved in phonon thermal conductivity are molecularly illustrated by a strain-induced crossover in bond configurations and are explained based on a competition mechanism between phonon scattering and group velocity. This study provides insights into the thermal transport and auxetic properties of low-dimensional structures and the thermal management of Mo6S6 nanowire-based systems.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85125211976&origin=inward; http://dx.doi.org/10.1039/d1nr08505k; http://www.ncbi.nlm.nih.gov/pubmed/35138319; https://xlink.rsc.org/?DOI=D1NR08505K; https://dx.doi.org/10.1039/d1nr08505k; https://pubs.rsc.org/en/content/articlelanding/2022/nr/d1nr08505k
Royal Society of Chemistry (RSC)
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