title: Enhanced thermoelectric performance of bar-coated SWCNT/P3HT thin films.
abstract: The influence of processing conditions, such as ink concentration and coating method, on the thermoelectric properties of SWCNT/P3HT nanocomposite films was investigated systematically. Using simple wire-bar-coating, SWCNT/P3HT nanocomposite films with high thermoelectric performance could be obtained without additional P3HT doping. The wire-bar-coated SWCNT/P3HT nanocomposite films exhibited power factors of up to 105 μW m(-1) K(-2) at room temperature. The SWCNT bundles with diameters in the range of 6-23 nm formed an interconnected network in the wire-bar-coated nanocomposite films. Network formation in these nanocomposite films was expected to be strongly related to the development of electrical pathways due to inter-SWCNT bundle connections. This study suggests that the thermoelectric performance of SWCNT/P3HT nanocomposite films could be optimized by controlling their processing conditions and morphology.
authors.affiliation: †Division of Advanced Materials, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea.|‡Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea.
authors.forename: Woohwa
authors.initials: W
authors.lastname: Lee
authors.affiliation: †Division of Advanced Materials, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea.
authors.forename: Cheon Taek
authors.initials: CT
authors.lastname: Hong
authors.affiliation: †Division of Advanced Materials, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea.
authors.forename: O Hwan
authors.initials: OH
authors.lastname: Kwon
authors.affiliation: †Division of Advanced Materials, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea.
authors.forename: Youngjae
authors.initials: Y
authors.lastname: Yoo
authors.affiliation: †Division of Advanced Materials, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea.
authors.forename: Young Hun
authors.initials: YH
authors.lastname: Kang
authors.affiliation: ‡Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea.
authors.forename: Jun Young
authors.initials: JY
authors.lastname: Lee
authors.affiliation: †Division of Advanced Materials, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea.
authors.forename: Song Yun
authors.initials: SY
authors.lastname: Cho
authors.affiliation: †Division of Advanced Materials, Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea.
authors.forename: Kwang-Suk
authors.initials: KS
authors.lastname: Jang
keywords: bar-coating; carbon nanotube; nanocomposite; poly(3-hexylthiophene); thermoelectric; thin film