A review of semiconductor gas sensor literature pertaining to the use of
temperature modulation techniques is presented. The temperature
dependence of sensor conductance is discussed, along with transient and
cyclic modulation techniques for improving sensitivity and selectivity
of sensors in the analysis of single gases and multi-component gas
mixtures.
Andrew Lee graduated with a Bachelor of Applied Science (Hons.) from the
University of Tasmania in 1997, and is currently studying for his PhD
in the School of Applied Science at the same institution. His research
project examines the applications of temperature modulation of
semiconductor gas sensors to quantitative analysis of gas mixtures.
Brian Reedy received his PhD in inorganic chemistry from the University
of Sydney in 1991, and currently lectures in chemistry in the School of
Applied Science at the University of Tasmania. His main areas of
interest are vibrational spectroscopy, inorganic chemistry and
semiconductor gas sensors (temperature modulation and characterisation
of sensor surface chemistry).
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