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MEASUREMENT OF ELECTRICAL CONDUCTIVITY AND PERCOLATION THRESHOLD OF MULTI-WALLED CARBON NANOTUBE/EPOXY COMPOSITES USING TERAHERTZ TIME DOMAIN SPECTROSCOPY
- Authors
- Kim, You-Gwon; Park, Dong-Woon; Kim, Hak Sung
- Issue Date
- Jun-2022
- Publisher
- Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)
- Keywords
- Carbon-nanotube; Electrical conductivity; Terahertz time-domain spectroscopy
- Citation
- ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability, v.3, pp.574 - 579
- Indexed
- SCOPUS
- Journal Title
- ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
- Volume
- 3
- Start Page
- 574
- End Page
- 579
- Abstract
- Due to superior electrical and mechanical properties of carbon nanotubes (CNT), CNT/epoxy composites have been widely used in various fields such as sensors, automobiles, and aerospace. Accurate measurement of the conductivity is important to reduce manufacturing costs. In this work, terahertz time domain spectroscopy (THz-TDS) from 0.1 to 3.0 THz was used to measure the conductivity of the MWCNT/epoxy composites with different CNT contents. The absorption behavior of THz waves in CNT/epoxy was investigated according to the MWCNT contents. It can be found that the optical properties including the extinction coefficient and the absorption coefficient were affected by the contents of the MWCNTs.
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Related Researcher
- Kim, Hak Sung
- COLLEGE OF ENGINEERING (SCHOOL OF MECHANICAL ENGINEERING)