Nanosize SnO2 for Highly Responsive Gas Sensor Application

Authors

Hao Liu, University of WollongongFollow
Jinsoo Park, University of WollongongFollow
Guoxiu Wang, University of WollongongFollow

RIS ID

32369

Publication Details

Wang, G., Liu, H. & Park, J. (2010). Nanosize SnO₂ for Highly Responsive Gas Sensor Application. Sensor Letters, 8 (2), 243-246.

Abstract

Novel nanosize SnO₂ particles were synthesized by a hard template method. The crystal structure and morphologies were characterized by X-ray diffraction and transmission electron microscopy. The particle size is around 4 nm, which is less than two times the depth (L) of the of the surface depletion layer. The sensing properties towards a series of gases, including ethanol, isopropanol, 1-butanol, formaldehyde, acetic acid, acetone, and 92# gasoline, were tested at different gas concentrations. The results reveal that the SnO₂ nanoparticles have high responsivity towards forementioned toxic and flammable gases.