title: Dispersion and current-voltage characteristics of helical polyacetylene single fibers.
abstract: To study the transport properties of individual helical polyacetylene (PA) fibers, we developed a method to extract a single fiber from tightly entangled ropes of helical PA bulk film. After a few minutes of sonication of a piece of helical PA bulk film in an organic solution containing surfactant, a droplet of solution is deposited on the pre-pattened electrode under argon atmosphere. AFM images show that extracted helical PA fibers are typically 10 mum in length and 100-200 nm in diameter. We found that the helicity of bulk materials is conserved. We present the temperature dependencies of current-voltage characteristics of individual helical PA fibers doped with iodine.
authors.affiliation: School of Physics and Nano Systems Institute-National Core Research Center, Seoul National University, Seoul, 151-747, Korea.
authors.forename: Hyun J
authors.initials: HJ
authors.lastname: Lee
authors.forename: Zhao X
authors.initials: ZX
authors.lastname: Jin
authors.forename: Andrey N
authors.initials: AN
authors.lastname: Aleshin
authors.forename: Ju Y
authors.initials: JY
authors.lastname: Lee
authors.forename: Mun J
authors.initials: MJ
authors.lastname: Goh
authors.forename: Kazuo
authors.initials: K
authors.lastname: Akagi
authors.forename: Young S
authors.initials: YS
authors.lastname: Kim
authors.forename: Dong W
authors.initials: DW
authors.lastname: Kim
authors.forename: Yung W
authors.initials: YW
authors.lastname: Park