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  • JSAP-OSA Joint Symposia 2016 Abstracts
  • (Optica Publishing Group, 2016),
  • paper 13p_A37_11

Optical and Photo-thermoelectric Properties of Fermi-level Tuned Single-Walled Carbon Nanotubes with a Selected Electronic Structure

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Abstract

One dimensional materials exhibit remarkable optical and thermoelectric properties owing to their unique electric structures such as presence of van Hove singularities (vHs) in density of states. Such one-dimensional characteristics can be observable when the diameter of the materials becomes less than or around 1 nm. Single walled carbon nanotubes (SWCNTs) are materials which have sufficient structural rigidity with such small diameters, providing us to investigate unique physical properties reflecting one-dimensional nature. Recent progress purification techniques of SWCNTs enable us to understand the physical properties of SWCNTs with a selected electronic structure. To clarify how the Fermi level position influences on the physical properties of networks formed by materials with sharp vHs, we have investigated the electrical, optical and thermoelectric properties of SWCNT networks with an selected electronic structure as a function of Fermi level using electric double layer carrier injection techniques.1–5) Here I would like to discuss two new findings in recent our studies.

© 2016 Japan Society of Applied Physics, Optical Society of America

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