In Situ spectroscopic and spectroelectrochemical characterization

01.04.2009 - 31.12.2011

Auftragsforschungsprojekt

The purpose of this project is to establish spectroelectrochemical methods that are necessary for the study of electrochemical model processes relevant to Electrochemical Deposition and Dissolution. These will be mainly IR spectroscopic in situ methods and surface enhanced infrared spectroscopy (SEIRAS) as well as surface enhanced Raman scattering (SERS) on nanostructured substrates. The necessary spectroelectrochemical cells will be constructed and tested with model systems, before they will be used in mechanistic studies of technically relevant processes, e.g. action of additives in electrodeposition and of corrosion inhibitors. While the above mentioned techniques will be carried out in macroscopic cells using macroscopic poly- or single-crystalline electrodes, we will also attempt to study electrochemical processes on the nanoscale. A combination of optical and electron beam lithography will be used to fabricate chips with nanoelectrode assemblies having either fixed (50 nm) or variable (break junction) interelectrode gaps. Within these gaps metallic nanostructures (nanocrystals and nanowires) will be deposited and dissolved electrochemically. The electrical properties and electrochemical behaviour of these structures that can be considered as building blocks of nanocrystalline layers will be studied as functions of composition, size and shape as well as electrolyte composition including additives.

Personen

Institut

E362 - Institute of Solid State Electronics

Contract/collaboration

Planai Hochwurzenbahnen Gmbh

Forschungsschwerpunkte

Biological and Bioactive Materials: 5%
Nano-electronics: 20%
Design and Engineering of Quantum Systems: 10%
Sensor Systems: 35%
Surfaces and Interfaces: 20%
Materials Characterization: 10%

Schlagwörter

Deutsch	Englisch
Nanoelektroden	nano electrodes
oberflächenverstärkte Infrarot Spektroskopie	Surface enhanced infrared spectroscopy
Korrosion	sequestration

Externe Partner_innen

Department of Chemistry and Biochemistry
Institut for Chemistry and Technology of Materials
Institute of Materials and Environmental Chemistry

Publikationen

Publikationsliste