Routine fabrication of reduced graphene oxide microarray devices via all solution processing
Article first published online: 18 MAR 2013
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
physica status solidi (a)
Volume 210, Issue 5, pages 968–974, May 2013
How to Cite
Lanche, R., Delle, L. E., Weil, M., Vu, X. T., Pachauri, V., Munief, W. M., Wagner, P. and Ingebrandt, S. (2013), Routine fabrication of reduced graphene oxide microarray devices via all solution processing. Phys. Status Solidi A, 210: 968–974. doi: 10.1002/pssa.201200910
- Issue published online: 17 MAY 2013
- Article first published online: 18 MAR 2013
- Manuscript Revised: 7 FEB 2013
- Manuscript Accepted: 7 FEB 2013
- Manuscript Received: 30 DEC 2012
- impedance spectroscopy;
- interdigitated electrodes
A method for the routine fabrication of graphene (reduced graphene oxide (r-GO)) based devices is reported. We describe a solution-based technique for the fabrication of the devices on alternative substrates and subsequent on-substrate processing of graphene oxide into reduced graphene oxide. As sensor platform we mainly used interdigitated gold electrodes forming microarray structures on glass substrates. Graphene oxide was site-specifically deposited onto microelectrode arrays by dielectrophoresis followed by a solution-based reduction of graphene oxide with L-ascorbic acid. In order to test the r-GO sensor stability and performance, impedance spectroscopy was used. The optimized all solution processed fabrication provides an attractive fabrication route for robust r-GO microarray devices in a flexible, scalable and cost-effective approach.
Schematics for a microarray chip based on reduced graphene oxide.