Nanostructured Ceramic Materials for Chemical Sensors: Present Status and Future Prospects

作者：Bhattacharyya P; Basu S^*

来源：Transactions of the Indian Ceramic Society, 2010, 69(1): 1-23.

• Chemical sensors
• nanostructures
• metal oxides
• SiC
• GaN
• Carbon nanotubes

Nanocrystalline ceramic materials (semiconducting oxides, SiC, GaN, CNT), due to their excessive surface to volume ratio and large free surface energy, are one of the key focus domains for researchers in the field of chemicals sensors during the last decade. Owing to the nanocrystallinity, several promising effects on sensor parameters like operating temperature, response magnitude (S), response time (tau(res)), recovery time (tau(rec)) and selectivity have been studied. This article provides a comprehensive review of the current research activities that concentrate on chemical sensors based on nanocrystalline-nanoporous thin films along with the thin films consisting of nanotubes, nanorods, nanobelts, nanoribbons and nanowires, comprising the wide bandgap semiconducting oxides (like SnO2, ZnO, TiO2, In2O3 etc) and other ceramic materials like SiC, GaN, CNT. The review also predictcs about the possible directions towards future research on nanostructured chemical sensors.

• 出版日期2010-3