Electric field-modulated non-ohmic behavior of carbon nanotube fibers in polar liquids.
basic_science · Level V
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- Record sourced from PubMed, PMID 25025345.
- Also identified by DOI 10.1021/nn5030835.
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Abstract
We report a previously unseen non-ohmic effect in which the resistivity of carbon nanotube fibers immersed in polar liquids is modulated by the applied electric field. This behavior depends on the surface energy, dielectric constant, and viscosity of the immersion media. Supported by synchrotron SAXS and impedance spectroscopy, we propose a model in which the gap distance, and thus the conductance, of capacitive interbundle junctions is controlled by the applied field.