Toward innovations of gas sensor technology

Although gas sensors have been almost matured in some application fields, there are a variety of newly emerging markets and potential markets which will be substantiated when gas sensors are innovated sufficiently. The importance of materials design in innovating gas sensors are demonstrated by taking semiconductor gas sensors and solid electrolyte gas sensors as examples. In addition, attempts to make the sensor devices more intelligent and more quantitative are also important for further advancements of gas sensor technology. © 2005 Elsevier B.V. All rights reserved.