A gradient microarray electronic nose based on percolating SnO(2) nanowire sensing elements.
Fabrication, characterization, and tests of the practical gradient microarray electronic nose with SnO(2) nanowire gas-sensing elements are reported. This novel device has demonstrated an excellent performance as a gas sensor and e-nose system capable of promptly detecting and reliably discriminating between several reducing gases in air at a ppb level of concentration. It has been found that, in addition to the temperature gradient across the nanowire layer, the density and morphological inhomogeneities of nanowire mats define the discriminating power of the electronic nose.
Sysoev
Victor V
VV
Department of Physics, Saratov State Technical University, Saratov 410054, Russia. vsysoev@sstu.ru
Goschnick
Joachim
J
Schneider
Thomas
T
Strelcov
Evghenii
E
Kolmakov
Andrei
A
D032701:Biomimetics / Q000295:instrumentation / Q000379:methods; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005740:Gases / Q000032:analysis*; D046228:Microarray Analysis / Q000295:instrumentation* / Q000379:methods; D008839:Microelectrodes; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods; D009666:Nose; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D017971:Tin Compounds / Q000737:chemistry*; D014159:Transducers
D005740:Gases; D017971:Tin Compounds; C045358:stannic oxide