Work

Polarity tuning of single-walled carbon nanotube by dipole field of ferroelectric polymer for thermoelectric conversion

Year: 2016

Type: article

Abstract: The tuning of the Seebeck coefficient of a single-walled carbon nanotube (SWCNT) film was achieved by using the dipole field of a ferroelectric polymer. The Seebeck coefficient was positive under an up-poling dipole field, but negative under a down-poling dipole field, whereas the control remained positive. This tunable behavior can be explained by selective carrier injection and accumulation, which was confirmed by the temperature dependence of electrical conductivity. Connecting p- and n-type SWCNT films tuned by dipole fields to create a π module resulted in a significant improvement in output voltage owing to the temperature difference between the two.

Source: Applied Physics Express

DOI: 10.7567/apex.9.081301

Authors: Shohei Horike, Masahiro Misaki, Yasuko Koshiba, Masahiro Morimoto, Takeshi Saito, Kenji Ishida

Institutions: Kobe University, National Institute of Advanced Industrial Science and Technology

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funder: Japan Society for the Promotion of Science

Awards: Controlled structure of novel organic pyroelectric materials on silk fibroin films, Fabrication and Characterization of the Transparent Pyroelectric Infrared Sensor Using Organic Ferroelectric Thin Film