373 citations · 1k across the 10 of their papers we have counts for
10 papers
Optimal Thermoelectric Power Factor of Narrow-Gap Semiconducting Carbon Nanotubes with Randomly Substituted Impurities
Manaho Matsubara, Kenji Sasaoka, Takahiro Yamamoto +1
We have theoretically investigated thermoelectric (TE) effects of narrow-gap single-walled carbon nanotubes (SWCNTs) with randomly substituted nitrogen (N) impurities, i.e., N-subs…
Bipolar thermoelectric effects in semiconducting carbon nanotubes: Description in terms of one-dimensional Dirac electrons
Takahiro Yamamoto, Hidetoshi Fukuyama
The thermoelectric effects in semiconducting single-walled carbon nanotubes (SWCNTs) are investigated based on the linear response theory combined with the thermal Green's function…
Possible High Thermoelectric Power in Semiconducting Carbon Nanotubes ~A Case Study of Doped One-Dimensional Semiconductors~
Takahiro Yamamoto, Hidetoshi Fukuyama
We have theoretically investigated the thermoelectric properties of impurity-doped one-dimensional semiconductors, focusing on nitrogen-substituted (N-substituted) carbon nanotubes…
Giant Seebeck coefficient in semiconducting single-wall carbon nanotube film
Yusuke Nakai, Kazuya Honda, Kazuhiro Yanagi +4
We found a giant Seebeck effect in semiconducting single-wall carbon nanotube (SWCNT) films, which exhibited a performance comparable to that of commercial Bi2Te3 alloys. Carrier d…
Nonequilibrium Green's Function Approach to Phonon Transport in Defective Carbon Nanotubes
Takahiro Yamamoto, Kazuyuki Watanabe
We have developed a new theoretical formalism for phonon transport in nanostructures using the nonequilibrium phonon Green's function technique and have applied it to thermal condu…
Electronic Transport in Fullerene C20 Bridge Assisted by Molecular Vibrations
Takahiro Yamamoto, Kazuyuki Watanabe, Satoshi Watanabe
The effect of molecular vibrations on electronic transport is investigated with the smallest fullerene C20 bridge, utilizing the Keldysh nonequilibrium Green's function techniques…