Pietro Cataldi, Ilker S Bayer, Francesco Bonaccorso, Vittorio Pellegrini, Athanassia Athanassiou and Roberto Cingolani
Italian Institute of Technology, Italy
ScientificTracks Abstracts: Res. Rev. J Mat. Sci
Flexible and foldable electronic components require materials that can retain their electrical conductivity even after hard mechanical manipulations and multiple folding events. Such a material was realized with two different methods exploiting the combination of all-biodegradable components (substrate and the polymer matrix) and graphene nanoplatelets (GnPs). A fibrous cellulose substrate was sized with a biopolymer-GnPs conductive ink rendering it electrically conductive (sheet resistance â10 â¦/sq). The obtained nanocomposites can be used as electrodes for surface electromyography and for terahertz electromagnetic interference shielding. With a similar approach, a flexible cotton-GnPs conductive nanocomposite was realized. This material addresses several drawbacks related to durability and washability of wearable electronics material. Micro-cracks formed after repeated folding-unfolding events can be healed through a hot-pressing process. Such cotton based conductive composites could find several applications in smart textile industry. References 1.Hyun et al. (2013) Foldable Graphene Electronic Circuits Based on Paper Substrates. Adv. Mater.; 25 (34): 4729-34. 2.Cataldi et al. (2016) Cellulosic Graphene Biocomposites for Versatile High-Performance Flexible Electronic Applications. Adv. El. Mater.; 2: 1600245.
Pietro Cataldi has completed his masters in physics from Genova University. He is currently pursuing PhD in Smart Materials group at the Italian Institute of Technology. He has published 5 papers in reputed journals. He has a patent request pending.