Role of metal/silicon semiconductor contact engineering for enhanced output current in micro-sized microbial fuel cells
KAUST DepartmentIntegrated Nanotechnology Lab
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Electrical Engineering Program
Environmental Science and Engineering Program
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AbstractWe show that contact engineering plays an important role to extract the maximum performance from energy harvesters like microbial fuel cells (MFCs). We experimented with Schottky and Ohmic methods of fabricating contact areas on silicon in an MFC contact material study. We utilized the industry standard contact material, aluminum, as well as a metal, whose silicide has recently been recognized for its improved performance in smallest scale integration requirements, cobalt. Our study shows that improvements in contact engineering are not only important for device engineering but also for microsystems. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
SponsorsWe thank Prof. Bruce Logan at Penn State University for useful discussion, Professor Gary Amy at KAUST for laboratory use at the Water Desalination and Reuse Center, Daniah Alsaady, Mariyam Mahmoud, and Shaiza Sinha from the KAUST schools for aid in characterization measurements and assembly, and Muhannad Abu-Ghdaib from KAUST WDRC for photographs. This work has been made possible with the OCRF Competitive Research Grant (CRG-1-2012-HUS-008) and GRP Collaborative Fellow (GRP-CF-2011-03-S) grant for J.E.M.