title: Apparent Power Law Scaling of Variable Range Hopping Conduction in Carbonized Polymer Nanofibers.
abstract: We induce dramatic changes in the structure of conducting polymer nanofibers by carbonization at 800 °C and compare charge transport properties between carbonized and pristine nanofibers. Despite the profound structural differences, both types of systems display power law dependence of current with voltage and temperature, and all measurements can be scaled into a single universal curve. We analyze our experimental data in the framework of variable range hopping and argue that this mechanism can explain transport properties of pristine polymer nanofibers as well.
authors.affiliation: Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea.
authors.forename: Kyung Ho
authors.initials: KH
authors.lastname: Kim
authors.affiliation: Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.
authors.forename: Samuel
authors.initials: S
authors.lastname: Lara-Avila
authors.affiliation: Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea.
authors.forename: Hojin
authors.initials: H
authors.lastname: Kang
authors.affiliation: Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.
authors.forename: Hans
authors.initials: H
authors.lastname: He
authors.affiliation: Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.
authors.forename: Johnas
authors.initials: J
authors.lastname: Eklӧf
authors.affiliation: Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea.
authors.forename: Sung Ju
authors.initials: SJ
authors.lastname: Hong
authors.affiliation: Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea.
authors.forename: Min
authors.initials: M
authors.lastname: Park
authors.affiliation: Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.
authors.forename: Kasper
authors.initials: K
authors.lastname: Moth-Poulsen
authors.affiliation: Department of Polymer Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Matsushita
authors.affiliation: Department of Polymer Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Akagi
authors.affiliation: Department of Microtechnology and Nanoscience, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.
authors.forename: Sergey
authors.initials: S
authors.lastname: Kubatkin
authors.affiliation: Department of Physics and Astronomy, Seoul National University, Seoul, 08826, Korea.
authors.forename: Yung Woo
authors.initials: YW
authors.lastname: Park