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Unique correlation between electrical, structural properties and electromagnetic shielding properties of carbon nanotube sheets
- Authors
- Choi, Minseouk; Cho, Young Shik; Park, Kyung Tae; Lee, Kyunbae; Shin, Keun-Young; Jung, Yeonsu; Kim, Taehoon
- Issue Date
- Jun-2024
- Publisher
- IOP Publishing Ltd
- Keywords
- carbon nanotube; carbon nanotube sheets; electrical conductivity; electromagnetic interference (EMI); EMI shielding efficiency
- Citation
- FUNCTIONAL COMPOSITES AND STRUCTURES, v.6, no.2
- Journal Title
- FUNCTIONAL COMPOSITES AND STRUCTURES
- Volume
- 6
- Number
- 2
- ISSN
- 2631-6331
2631-6331
- Abstract
- Correlation between electrical, structural properties and electromagnetic shielding efficiency (EMI SE) of carbon nanotube sheets (CNTSs) was investigated. Solvent densification of CNTSs led to enhancements of carbon nanotube (CNT) bundling behavior and densification in the thickness direction while maintaining the areal density of the CNTSs. These structural modifications resulted in enhanced electrical properties and reduced sheet thickness by modifying the microstructure and bundling characteristics. Remarkably, contrary to conventional EMI shielding materials, the sheet resistance which reflects bundling behavior and microstructure of CNTSs, is the critical factor affecting the EMI SE of the CNTSs rather than electrical conductivity. The findings provide fundamental insights essential for the design of EMI shielding films incorporating CNTs.
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Related Researcher
- Shin, Keun Young
- College of Engineering (Department of Materials Science and Engineering)