Back to Search
Start Over
Effective EMI shielding behaviour of thin graphene/PMMA nanolaminates in the THz range
- Source :
- Nat Commun 12, 4655 (2021)
- Publication Year :
- 2021
-
Abstract
- The use of graphene in a form of discontinuous flakes in polymer composites limits the full exploitation of the unique properties of graphene, thus requiring high filler loadings for achieving - for example - satisfactory electrical and mechanical properties. Herein centimetre-scale CVD graphene/polymer nanolaminates have been produced by using an iterative 'lift-off/float-on' process and have been found to outperform, for the same graphene content, state-of-the-art flake-based graphene polymer composites in terms of mechanical reinforcement and electrical properties. Most importantly these thin laminate materials show a high electromagnetic interference (EMI) shielding effectiveness, reaching 60 dB for a small thickness of 33 micron, and an absolute EMI shielding effectiveness close to 3* 10 ^5 dB cm ^2 g^-1 which is amongst the highest values for synthetic, non-metallic materials produced to date.<br />Comment: Article and Supplementary Material
- Subjects :
- Physics - Applied Physics
Condensed Matter - Materials Science
Subjects
Details
- Database :
- arXiv
- Journal :
- Nat Commun 12, 4655 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2108.10016
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1038/s41467-021-24970-4