Gas Sensors Based on the Field Effect

Dear Colleagues,

Gas sensors based on the field effect, in particular field effect transistors, can be used in a wide range of applications. They are well known for sensitive and selective detection of hydrogen and ammonia, but are also designed to sense many other gases and gas mixtures. Originally based on silicon as the semiconductor, silicon dioxide as the insulator and precious metals as gate materials, field effect gas sensors today come in a wide variety of materials and structures. Use of nanostructured materials, such as carbon nanotubes and graphene, in the gate of field effect devices is one such trend. The use of wide bandgap materials for the semiconductor part is another. Applying temperature modulation is also a way to extend the sensing capabilities.

The aim of this special issue is to bring together innovative applications of field effect gas sensors, new sensor materials and sensor designs, as well as basic investigations of response mechanisms. Both review articles and original research papers relating to gas sensing with field effect devices are welcome. Papers concerning applications and/or measurement conditions where field effect gas sensors have properties that exceed those of other gas sensor technologies are of particular interest.

Dr. Mats Eriksson
Guest Editor

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