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Probing of Thermal Transport in 50 nm Thick PbTe Nanocrystal Films by Time-Domain Thermoreflectance

TitleProbing of Thermal Transport in 50 nm Thick PbTe Nanocrystal Films by Time-Domain Thermoreflectance
Publication TypeJournal Article
Year of Publication2018
AuthorsPiotrowski, M, Franco, M, Sousa, V, Rodrigues, J, Deepak, FL, Kakefuda, Y, Kawamoto, N, Baba, T, Owens-Baird, B, Alpuim, P, Kovnir, K, Mori, T, ko, YV
JournalJournal of Physical Chemistry C
Volume122
Pagination27127-27134
Date Published12
Type of ArticleArticle
ISBN Number1932-7447
Accession NumberWOS:000452693300002
Keywordschemistry, conductivity, enhancement, figure, Materials Science, performance, power, shape, solids, Technology - Other Topics, thermoelectric-materials, thermopower
Abstract

em based on a picosecond thermoreflectance instrument, which enables area-selective analysis with spatial resolution down to 5 mu m. The results show that the as-fabricated PbTe NC films exhibit ultralow thermal conductivity of 0.9 W m(-1) K-1 at 300 K. The transport property findings suggest potential in the proposed quick and cost-effective spin-coating strategy for bottom-up fabrication of nanostructured TE films from high-quality colloidal NC building blocks.

DOI10.1021/acs.jpcc.8b04104
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Not AL

Alternate JournalJ. Phys. Chem. C