Type
ArticleAuthors
Kaidarova, Altynay
Khan, Mohammed Asadullah
Marengo, Marco
Swanepoel, Liam
Przybysz, Alexander
Muller, Cobus
Fahlman, Andreas
Buttner, Ulrich
Geraldi, Nathan

Wilson, Rory P.
Duarte, Carlos M.

Kosel, Jürgen

KAUST Department
Electrical Engineering ProgramComputer, Electrical and Mathematical Sciences & Engineering (CEMSE) King Abdullah University of Science and Technology(KAUST), Thuwal 23955, Saudi Arabia
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Carrer d’Eduardo Primo Yúfera, 146013 Valencia, Spain Computer, Electrical and Mathematical Sciences & Engineering (CEMSE) King Abdullah University of Science and Technology(KAUST), Thuwal 23955, Saudi Arabia
MicroFluidics
Red Sea Research Center (RSRC)
Biological and Environmental Sciences and Engineering (BESE) Division
Marine Science Program
Date
2019-08-02Online Publication Date
2019-08-02Print Publication Date
2019-12Permanent link to this record
http://hdl.handle.net/10754/656523
Metadata
Show full item recordAbstract
The outstanding properties of graphene have initiated myriads of research and development; yet, its economic impact is hampered by the difficulties encountered in production and practical application. Recently discovered laser-induced graphene is generated by a simple printing process on flexible and lightweight polyimide films. Exploiting the electrical features and mechanical pliability of LIG on polyimide, we developed wearable resistive bending sensors that pave the way for many cost-effective measurement systems. The versatile sensors we describe can be utilized in a wide range of configurations, including measurement of force, deflection, and curvature. The deflection induced by different forces and speeds is effectively sensed through a resistance measurement, exploiting the piezoresistance of the printed graphene electrodes. The LIG sensors possess an outstanding range for strain measurements reaching >10% A double-sided electrode concept was developed by printing the same electrodes on both sides of the film and employing difference measurements. This provided a large bidirectional bending response combined with temperature compensation. Versatility in geometry and a simple fabrication process enable the detection of a wide range of flow speeds, forces, and deflections. The sensor response can be easily tuned by geometrical parameters of the bending sensors and the LIG electrodes. As a wearable device, LIG bending sensors were used for tracking body movements. For underwater operation, PDMS-coated LIG bending sensors were integrated with ultra-low power aquatic tags and utilized in underwater animal speed monitoring applications, and a recording of the surface current velocity on a coral reef in the Red Sea.Citation
Kaidarova, A., Khan, M. A., Marengo, M., Swanepoel, L., Przybysz, A., Muller, C., … Kosel, J. (2019). Wearable multifunctional printed graphene sensors. Npj Flexible Electronics, 3(1). doi:10.1038/s41528-019-0061-5Sponsors
This research is a contribution to the CAASE project funded by King Abdullah University of Science and Technology (KAUST) under the KAUST Sensor Initiative. We thank the staff and leadership of the Oceanografic in Valencia for their help and support during the sensor tests with turtle and dolphin.Publisher
Springer Science and Business Media LLCJournal
npj Flexible ElectronicsAdditional Links
http://www.nature.com/articles/s41528-019-0061-5ae974a485f413a2113503eed53cd6c53
10.1038/s41528-019-0061-5