title: Thin Films of Highly Planar Semiconductor Polymers Exhibiting Band-like Transport at Room Temperature.
abstract: We report the observation of band-like transport from printed polymer thin films at room temperature. This was achieved from donor-acceptor type thiophene-thiazole copolymer that was carefully designed to enhance the planarity of the backbone and the resulting transfer integral between the macromolecules. Due to the strong molecular interaction, the printed polymer film exhibited extremely low trap density comparable to that of molecular single crystals. Moreover, the energy barrier height for charge transport could be readily reduced with the aid of electric field, which led formation of extended electron states for band-like charge transport at room temperature.
authors.affiliation: †Material Research Center, Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do 443-803, Korea.|‡Department of Graphic Arts Information Engineering, Pukyong National University, Busan 608-739, Korea.
authors.forename: Jiyoul
authors.initials: J
authors.lastname: Lee
authors.affiliation: †Material Research Center, Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do 443-803, Korea.
authors.forename: Jong Won
authors.initials: JW
authors.lastname: Chung
authors.forename: Do Hwan
authors.initials: DH
authors.lastname: Kim
authors.affiliation: †Material Research Center, Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do 443-803, Korea.
authors.forename: Bang-Lin
authors.initials: BL
authors.lastname: Lee
authors.affiliation: †Material Research Center, Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do 443-803, Korea.
authors.forename: Jeong-Il
authors.initials: JI
authors.lastname: Park
authors.affiliation: †Material Research Center, Samsung Advanced Institute of Technology, Suwon, Gyeonggi-do 443-803, Korea.
authors.forename: Sangyoon
authors.initials: S
authors.lastname: Lee
authors.affiliation: ∥Laboratory for Solid State Physics, ETH Zurich, Zurich 8093, Switzerland.
authors.forename: Roger
authors.initials: R
authors.lastname: Häusermann
authors.affiliation: ∥Laboratory for Solid State Physics, ETH Zurich, Zurich 8093, Switzerland.
authors.forename: Bertram
authors.initials: B
authors.lastname: Batlogg
authors.affiliation: §Photo-Electronic Hybrids Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea.|¶KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-701, Korea.
authors.forename: Sang-Soo
authors.initials: SS
authors.lastname: Lee
authors.forename: Insil
authors.initials: I
authors.lastname: Choi
authors.forename: Il Won
authors.initials: IW
authors.lastname: Kim
authors.forename: Moon Sung
authors.initials: MS
authors.lastname: Kang