A Theoretical Investigation of the Electrical and Dielectric Properties of PDMS‐CNT
K Poovendran, N.R. Ramanujam, K.S.Joseph Wilson, V.Prasanna Venkatesh- Materials Chemistry
- Inorganic Chemistry
- Polymers and Plastics
- Organic Chemistry
- Condensed Matter Physics
Abstract
In the present study, the dielectric and electrical properties of the carbon nanotube/polydimethylsiloxane (CNT/PDMS) composite are theoretically analyzed for various doping concentrations. For both single‐walled and multiwalled CNTs, the work is done between 75 THz and 750 THz.The behavior of the dielectric constant, loss factor, and conductivity were analyzed as functions of frequency. It is observed that there is no appreciable change in the real part of the dielectric constant at high frequencies in single‐walled CNT. The loss tangent is high at lower frequencies, and the loss peak is observed at a particular frequency. The Cole‐Cole plot is used to interpret the static‐ and high‐frequency dielectric constants and relaxation time of the composite. With increasing concentrations of SCNT and MCNT, the conductivity at the obtained peak maximum shifts to a lower frequency.
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