4.6 Article

Optical and thermal response of single-walled carbon nanotube-copper sulfide nanoparticle hybrid nanomaterials

Journal

NANOTECHNOLOGY
Volume 23, Issue 45, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/23/45/455708

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Funding

  1. NASA/LaSPACE

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This paper reports the optical and thermal response of a single-walled carbon nanotube-copper sulfide nanoparticle (SWNT-CuS NP) hybrid nanomaterial and its application as a thermoelectric generator. The hybrid nanomaterial was synthesized using oleylamine molecules as the linker molecules between SWNTs and CuS NPs. Measurements found that the hybrid nanomaterial has significantly increased light absorption (up to 80%) compared to the pure SWNT. Measurements also found that the hybrid nanomaterial thin-film devices exhibit a clear optical and thermal switching effect, which can be further enhanced up to 10x by asymmetric illumination of light and thermal radiation on the thin-film devices instead of symmetric illumination. A simple prototype thermoelectric generator enabled by the hybrid nanomaterials is demonstrated, indicating a new route for achieving thermoelectricity.

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