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Fabrication and electrical characterization of polyaniline-based nanofibers with diameter below 30 nm
Abstract
We fabricate and electrically characterize electrospun nanofibers of doped polyaniline/polyethylene oxide (PAn/PEO) blend with sub-30 nm diameter. Fiber diameters near 5 nm are obtained for optimized process parameters. Scanning conductance microscopy (SCM) shows that fibers with diameter below 15 nm are electrically insulating; the small diameter may allow complete dedoping in air or be smaller than phase-separated grains of PAn and PEO. Electrical contacts to nanofibers are made by shadow mask evaporation with no chemical or thermal damage to the fibers. Single fiber I–V characteristics show that thin fibers conduct more poorly than thick ones, in agreement with SCM data. I–Vs of asymmetric fibers are rectifying, consistent with formation of Schottky barriers at the nanofiber-metal contacts.
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Citations
Cited by
Spinning Continuous Fibers for Nanotechnology
Dzenis, Y. (2004) · Science · doi:10.1126/science.1099074 · Cited by 1,110
One‐Dimensional Composite Nanomaterials: Synthesis by Electrospinning and Their Applications
Lu, X., Wang, C., & Wei, Y. (2009) · Small · doi:10.1002/smll.200900445 · Cited by 874
Kim, F. S., Ren, G., & Jenekhe, S. A. (2011) · Chemistry of Materials · doi:10.1021/cm102772x · Cited by 664
One dimensional nanostructured materials
Kuchibhatla, S. V. N. T., Karakoti, A. S., Bera, D., & Seal, S. (2007) · Progress in Materials Science · doi:10.1016/j.pmatsci.2006.08.001 · Cited by 631
Conducting Polyaniline Nanowire and Its Applications in Chemiresistive Sensing
Song, E., & Choi, J.-W. (2013) · Nanomaterials · doi:10.3390/nano3030498 · Cited by 462
Metadata
- Authors
- Zhou, Y., Freitag, M., Hone, J., Staii, C., Johnson, A. T., Pinto, N. J., & MacDiarmid, A. G.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2003-11-03
- Volume
- 83
- Issue
- 18
- Pages
- 3800-3802
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W1965012628
- Cited by
- 201
- References
- 0
- FWCI
- 13.70
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhou, Y., Freitag, M., Hone, J., Staii, C., Johnson, A. T., Pinto, N. J., & MacDiarmid, A. G. (2003). Fabrication and electrical characterization of polyaniline-based nanofibers with diameter below 30 nm. Applied Physics Letters. https://doi.org/10.1063/1.1622108
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