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Modeling the Relative Dielectric Permittivity and Impedance of Carbon Nanotube Constituted Polymer Composites in the Sub-GHz Regime
- Authors
- Pfeifer, S; Park, SH; Bandaru, PR
- Issue Date
- Oct-2013
- Publisher
- ELECTROCHEMICAL SOC INC
- Citation
- ECS SOLID STATE LETTERS, v.2, pp.M5 - M7
- Journal Title
- ECS SOLID STATE LETTERS
- Volume
- 2
- Start Page
- M5
- End Page
- M7
- ISSN
- 2162-8742
- Abstract
- A model-based approach to characterize the electrical impedance of polymer matrices with carbon nanotube fillers, based on dielectric permittivity measurements in the sub-GHz regime, is proposed. In this context, an equivalent-series resistance (ESR) model, constituted of lumped resistances (R) and capacitances (C) is compared with distributed models such as a RC network and constant phase element (CPE) representations. It is shown, through detailed statistical analysis, that the CPE corresponding to a distribution/dispersion of relaxation times may best fit the experimental data. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.006301ssl] All rights reserved.
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Related Researcher
- Park, Sung-Hoon
- College of Engineering (School of Mechanical Engineering)