Printed Stretchable Graphene Conductors for Wearable Technology

• Type: Article in International Scientific Journal
• Date: 2022

Authors

van Hazendonk, LS (Author) Other; Artur Pinto (Author) FEUP; Arapov, K (Author) Other; Pillai, N (Author) Other; Beurskens, MRC (Author) Other; Teunissen, JP (Author) Other; Sneck, A (Author) Other; Smolander, M (Author) Other; Rentrop, CHA (Author) Other; Bouten, PCP (Author) Other; Friedrich, H (Author) Other

Journal

Title: Chemistry of Materials

Vol. 34

Pages: 8031-8042

ISSN: 0897-4756

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-00X-5AS

DOI: 10.1021/acs.chemmater.2c02007

Abstract (EN): Skin-compatible printed stretchable conductors that combine a low gauge factor with a high durability over many strain cycles are still a great challenge. Here, a graphene nanoplatelet-based colloidal ink utilizing a skin-compatible thermoplastic polyurethane (TPU) binder with adjustable rheology is developed. Stretchable conductors that remain conductive even under 100% strain and demonstrate high fatigue resistance to cyclic strains of 20-50% are realized via printing on TPU. The sheet resistances of these conductors after drying at 120? are as low as 34 omega -1 mil-1. Furthermore, photonic annealing at several energy levels is used to decrease the sheet resistance to < 10 omega? ( -1 )mil( -1), with stretchability and fatigue resistance being preserved and tunable. The high conductivity, stretchability, and cyclic stability of printed tracks having excellent feature definition in combination with scalable ink production and adjustable rheology bring the high-volume manufacturing of stretchable wearables into scope.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12