Recent developments in field-effect gas sensors

Some of the ongoing studies at our laboratory of gas-sensitive field-effect devices with catalytic metal gates are reviewed. More particularly, we discuss the use of such devices in so-called electronic noses due to the possibility of changing the selectivity patterns of the devices by the choice of catalytic metal and operation temperature. Several examples of the application of electronic noses consisting of field-effect devices in combination with metal oxide-based sensors are given. Finally, a summary is given of some remaining scientific problems and studies related to the understanding and development of gas-sensitive field-effect devices.

[1]  C. Svensson,et al.  A hydrogen-sensitive Pd-gate MOS transistor , 1975 .

[2]  Ingemar Lundström,et al.  Artificial neural networks and gas sensor arrays: quantification of individual components in a gas mixture , 1991 .

[3]  K. Persaud,et al.  Analysis of discrimination mechanisms in the mammalian olfactory system using a model nose , 1982, Nature.

[4]  Takamichi Nakamoto,et al.  Identification capability of odor sensor using quartz-resonator array and neural-network pattern recognition , 1990 .

[5]  Ingemar Lundström,et al.  Electronic Noses Based on Field Effect Structures , 1992 .

[6]  R. C. Hughes,et al.  Thin‐film palladium and silver alloys and layers for metal‐insulator‐semiconductor sensors , 1987 .

[7]  R. C. Hughes,et al.  Plasma-edge diagnostics based on Pd-MOS diodes , 1989 .

[8]  J. Stetter,et al.  Theoretical basis for identification and measurement of air contaminants using an array of sensors having partly overlapping selectivities , 1984 .

[9]  C. Nylander,et al.  Hydrogen concentration in expired air analyzed with a new hydrogen sensor, plasma glucose rise, and symptoms of lactose intolerance after oral administration of 100 gram lactose. , 1985, Scandinavian journal of gastroenterology.

[10]  Ingemar Lundström,et al.  Generation of response maps of gas mixtures , 1993 .

[11]  Kenneth R. Beebe,et al.  Selection of adsorbates for chemical sensor arrays by pattern recognition , 1986 .

[12]  Ingemar Lundström,et al.  Hydrogen in smoke detected by the Pd‐gate field‐effect transistor , 1976 .

[13]  Ingemar Lundström,et al.  A hydrogen−sensitive MOS field−effect transistor , 1975 .

[14]  B. Danielsson,et al.  Determination of creatinine by an ammonia-sensitive semiconductor structure and immobilized enzymes. , 1986, Analytical chemistry.

[15]  Terence Desmond Blake,et al.  Contact-Angle Hysteresis , 1973 .

[16]  Ingemar Lundström,et al.  Catalytic metals and field-effect devices—a useful combination , 1990 .

[17]  K. Birdi,et al.  Wettability and Contact Angles , 1984 .

[18]  I Lundström,et al.  Artificial 'olfactory' images from a chemical sensor using a light-pulse technique , 1991, Nature.

[19]  C. Svensson,et al.  Hydrogen leak detector using a Pd‐gate MOS transistor , 1975 .

[20]  Egon Matijević,et al.  Surface and Colloid Science , 1971 .

[21]  Fredrik Winquist,et al.  Performance of an electronic nose for quality estimation of ground meat , 1993 .

[22]  Ingemar Lundström,et al.  Modified palladium metal‐oxide‐semiconductor structures with increased ammonia gas sensitivity , 1983 .

[23]  M. Armgarth,et al.  Physics with catalytic metal gate chemical sensors , 1989 .