Effective EMI shielding behaviour of thin graphene/PMMA nanolaminates in the THz range
| Autor: | Pavlou, Christos, Carbone, Maria Giovanna Pastore, Manikas, Anastasios C, Trakakis, George, Koral, Can, Papari, Gianpaolo, Andreone, Antonello, Galiotis, Costas |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Nat Commun 12, 4655 (2021) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1038/s41467-021-24970-4 |
| Popis: | 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. Comment: Article and Supplementary Material |
| Databáze: | arXiv |
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