Objective
Chemical sensors for environmental monitoring, medical applications, and industrial process control are essential for continuous in situ measurements. Further development of chemical sensors requires both synthesis of new sensitive materials and investigation of their sensing principles, in particular chemical and physical processes occurring at the sensor/environment interface. Such an investigation is necessary for better understanding the fundamentals of the sensor response and enables new sensor materials to be synthesized with improved sensitivity, selectivity, and stability.
Corrosion-resistant chalcogenide and chalcohalide bulk glasses and thin films are new promising materials for chemical sensing of heavy-metal ions (Pb2+, Cd2+, Hg2+, Cu2+, Tl+, etc.) and toxic anions (CN-, CNS-, S2-, arsenite and arsenate ions). All these materials can be used in bulk and thin film form. Thin and ultra-thin sensitive layers obtained by methods compatible with planar silicon technology enable the development of integrated chemical microsensors and microsensor arrays with a fast and reliable response in multicomponent analytes. Corresponding miniaturized analytical systems for on-line monitoring are very promising in manifold applications in various social and industrial fields.
The aim of this co-operation is: the synthesis of bulk, thin and ultra-thin film sensor materials and their characterization; an extended investigation of basic sensing mechanisms, i.e. chemical and physical processes occurring at the sensor/environment interface; the preparation, integration and modelling of miniaturized chemical sensors.
The results will be to advance basic understanding of the materials properties and sensing mechanisms; develop new chemical sensors, and make an input to technological development, especially for NIS countries.
Call for proposal
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76021 Karlsruhe
Germany