MESSAI.iO

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Contact engineering plays a crucial role in maximizing performance in microbial fuel cells, particularly in micro-sized devices.

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What they did

System
MFC

What worked

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Abstract

We 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.

Key findings

  • Improvements in contact engineering are essential for both device and microsystem engineering.
  • Schottky and Ohmic methods of fabricating contact areas on silicon in MFCs show varying results.
  • Using cobalt as a contact material leads to improved performance in micro-sized integration requirements.

Keywords

Ohmic contactMicrobial fuel cellSiliconSchottky barrierSchottky diodeMicrosystem

Identifiers

DOI
10.1002/pssa.201330233
Journal
physica status solidi (a)
Year
2013