Sensors and Materials at the WSI

The research activities in the Sensors and Materials group focus on the growth and characterization of wide bandgap semiconductors such as the group III-nitrides (AlGaN) or metal oxides (ZnMgO) as well as their hetero- and nanostructures. In addition, the application of these materials in chemical and biochemical sensors is investigated. In particular, chemical functionalization and covalent immobilization of functional biomolecules for biosensors and bioelectronic systems is studied.

Current research topics (including links to related PhD projects)

• Molecular beam epitaxy of ZnMgO alloys
• Structural and optical characterization of ZnMgO alloys
• Molecular beam epitaxy of group III-nitride nanostructures (NAWACS: Nanowire arrays for multifunctional chemical sensors)
• GaN quantum dots as optical transducers in chemical sensors
• AlGaN/GaN electrolyte gate field effect transistors
• Chemical functionalization of AlGaN surfaces (GaNano: "New Generation of GaN-based sensor arrays for nano- and pico-fluidic systems for fast and reliablebiomedical testing (EU STREP NMP4-CT-2003-505641))
• Enzyme-modified AlGaN/GaN electrolyte gate field effect transistors
  (SFB 563: Bioorganische Systeme auf Festkörpern)

Group members

• Dr. Martin Eickhoff (group leader)
   (now at Justus-Liebig-Universität Gießen)
• Barbara Baur
• Florian Furtmayr
• John Howgate
• Bernhard Laumer
• Thomas Wassner
• Olaf Weidemann
• Gunther Jegert
• Stefan Maier
• Wiebke Steins
• Martin Vielemeyer

Contact

If you have questions or are interested to join our group please contact Dr. Martin Eickhoff.