Journal
APPLIED PHYSICS LETTERS
Volume 114, Issue 24, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5100891
Keywords
-
Categories
Funding
- Engineering and Physical Sciences Research Council (EPSRC) [EP/P027628/1]
- National Research Foundation of Korea - Korea government (MSIT) (NRF) [2019R1A2C1005930, 2017R1A2B2010663]
- Nebraska Research Initiative of USA
- EPSRC [EP/K040375/1]
- National Research Foundation of Korea [2019R1A2C1005930, 2017R1A2B2010663] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- EPSRC [EP/P027628/1] Funding Source: UKRI
Ask authors/readers for more resources
Anisotropic nanowires are promising candidates for electronic thermal management due to their unique electrical and thermal properties. However, eco-friendly solution-processed nanomaterials with an elaborate morphology and microstructure for modulating thermal and charge transfer are still a considerable challenge. Herein, we present a simple but effective approach for synthesizing pseudo core-shell nanowires through quantum dot (QD)-like nanostructure coating (p-NW@QD) to generate exceptional electron-phonon transport properties. With the assistance of diphenyl ether as a coordination solvent, high crystallinity lead sulfide NWs can be fabricated with a large aspect ratio together with uniform QD coating. This p-NW@QD exhibits high electronic mobility (30.65cm(2)/Vs) as well as a diameter independent low thermal conductivity (1.53 +/- 1W/mK). Direct charge/heat carrier flow measurements and computational simulations demonstrate that the unusual electrical and thermal transport phenomenon is strongly dependent on the fast charge transport through the QD shell, and a slow phonon migration across the Umklapp process dominated NW cores. These findings indicate a significant step toward colloidal synthesis nanostructures for future high-performance nanoelectronics and thermal energy devices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available