This work is aimed to examine nano-ceramic metal-oxide semiconductors and their peculiar features devoted to gas sensing application, particularly in the atmospheric pollutants monitoring. For this purpose, sensors have to measure traces of gases in the atmosphere with sensitivity and selectivity comparable to those of the analytical devices; moreover it is necessary for them to be stable, repetitive and reliable. For sensor engineering, further improvements in research and technology are needed, especially a deeper understanding of the physics and, more specifically, of the change in the characteristics due to the nanometric size. Indeed, the characteristic length below which a material can be properly considered as nanosized is a parameter of great significance in gas detection.
Nanostructured chemoresistive thick film gas sensors: theoretical and technological aspects
CAROTTA, Maria Cristina;
2007
Abstract
This work is aimed to examine nano-ceramic metal-oxide semiconductors and their peculiar features devoted to gas sensing application, particularly in the atmospheric pollutants monitoring. For this purpose, sensors have to measure traces of gases in the atmosphere with sensitivity and selectivity comparable to those of the analytical devices; moreover it is necessary for them to be stable, repetitive and reliable. For sensor engineering, further improvements in research and technology are needed, especially a deeper understanding of the physics and, more specifically, of the change in the characteristics due to the nanometric size. Indeed, the characteristic length below which a material can be properly considered as nanosized is a parameter of great significance in gas detection.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
