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Giant Seebeck coefficient in semiconducting single-wall carbon nanotube film

2014; Institute of Physics; Volume: 7; Issue: 2 Linguagem: Inglês

10.7567/apex.7.025103

1882-0786

Yusuke Nakai, Kazuya Honda, Kazuhiro Yanagi, Hiromichi Kataura, Teppei Kato, Takahiro Yamamoto, Yutaka Maniwa,

Thermal properties of materials

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 doping of semiconducting SWCNT films further improved the thermoelectric performance. These results were reproduced well by first-principles transport simulations based on a simple SWCNT junction model. These findings suggest strategies that pave the way for emerging printed, all-carbon, flexible thermoelectric devices.