Synthesis and use of a novel SnO nanomaterial for gas sensing

Decomposition of the organometallic precursor wSn NMe2.2x2 in a controlled waterranisol mixture leads to the formation of monodisperse nanocomposite particles of SnrSnO . Full oxidation of the particles into SnO occurs at 6008C x 2 without size or morphology change. These particles can be deposited onto silicon nitride covered microelectronic platforms and used as sensitive layers of gas sensors. Doping of the sensors with palladium can be achieved either by co-decomposi- tion of organometallic precursors doping in volume.or by deposition of palladium on preformed SnO2 nanoparticles doping in surface.. The doped sensors display an unusually high sensitivity for CO sensing. q2000 Elsevier Science B.V. All rights reserved.