title: Fabrication and mechanical properties of suspended one-dimensional polymer nanostructures: polypyrrole nanotube and helical polyacetylene nanofibre.
abstract: Mechanical properties of suspended quasi-one-dimensional polymer nanostructures were investigated using atomic force microscopy (AFM). A recently developed new acid-free etch method combined with electron beam lithography was used to fabricate suspended polypyrrole (PPy) nanotubes and helical polyacetylene (HPA) nanofibres. The elastic modulus of each suspended structure was obtained by AFM force-distance measurements. The estimated modulus value of the PPy nanotube (HPA nanofibre) was 0.96 GPa (0.5 GPa). Using this acid-free method, all-organic flexible NEMS devices can be fabricated in the future.
authors: School of Physics and Nano Systems Institute, National Core Research Center, Seoul National University, Seoul 151-747, Korea. Department of Physics, Göteborg University, SE-412 96 Göteborg, Sweden.
authors: S W
authors: SW
authors: Lee
authors: B
authors: B
authors: Kim
authors: D S
authors: DS
authors: Lee
authors: H J
authors: HJ
authors: Lee
authors: J G
authors: JG
authors: Park
authors: S J
authors: SJ
authors: Ahn
authors: E E B
authors: EE
authors: Campbell
authors: Y W
authors: YW
authors: Park