Development of n-type cobaltocene-encapsulated carbon nanotubes with remarkable thermoelectric property.

ABSTRACT: Direct conversion from heat to electricity is one of the important technologies for a sustainable society since large quantities of energy are wasted as heat. We report the development of a single-walled carbon nanotube (SWNT)-based high conversion efficiency, air-stable and flexible thermoelectric material. We prepared cobaltocene-encapsulated SWNTs (denoted CoCp2@SWNTs) and revealed that the material showed a negative-type (n-type) semiconducting behaviour (Seebeck coefficient: -41.8 μV K(-1) at 320 K). The CoCp2@SWNT film was found to show a high electrical conductivity (43,200 S m(-1) at 320 K) and large power factor (75.4 μW m(-1) K(-2)) and the performance was remarkably stable under atmospheric conditions over a wide range of temperatures. The thermoelectric figure of merit (ZT) val

SUBMITTER: Fukumaru T 

PROVIDER: S-EPMC4302313 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature