MUÑOZ ROJO, Miguel; MART'IN, Jaime; GRAUBY, Stéphane; BORCA-TASCIUC, Theodorian; DILHAIRE, Stefan; MARTIN-GONZALEZ, Marisol

doi:10.1039/C4NR00107A

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http://creativecommons.org/licenses/by-sa/

MUÑOZ ROJO, Miguel
Instituto de Microelectronica de Madrid [IMM]

MART'IN, Jaime
Instituto de Microelectronica de Madrid [IMM]

GRAUBY, Stéphane
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

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Nanoscale. 2014-06-26, vol. 6, n° 14, p. 7858-7865

Royal Society of Chemistry

Resumen en inglés

To date, there is no experimental characterization of thermal conductivity of semiconductor polymeric individual nanowires embedded in a matrix. This work reports on scanning thermal microscopy measurements in a 3ω configuration to determine how the thermal conductivity of individual nanowires made of a model conjugated polymer (P3HT) is modified when decreasing their diameters. We observe a reduction of thermal conductivity, from λNW = 2.29 ± 0.15 W K−1 m−1 to λNW = 0.5 ± 0.24 W K−1 m−1, when the diameter of nanowires is reduced from 350 nm to 120 nm, which correlates with the polymer crystal orientation measured by WAXS. Through this work, the foundations for future polymer thermal transport engineering are presented.< Leer menos

DOI

http://dx.doi.org/10.1039/C4NR00107A

Proyecto europeo

Nano-engineered high performance Thermoelectric Energy Conversion devices

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Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798