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Schematic of the procedure used for synthesis of mixed nanoparticle films where sections of the setup are described as follows: 1, evaporation furnace; 2, aerosol charger 3, DMA in which the voltage controls the size; 4, sintering furnace; 5, particle counter; and 6, film deposition. Stages of the synthesis are described as follows: A, polydisperse SnO particles; , polydisperse Ag particles; B, charged SnO particles, , charged Ag particles; C, size-selected SnO particles; , size-selected Ag particles; D, size-selected particles; N, concentration of particles, , concentration of Ag particles; and E, particle film.
Variation of sensor signal with size of Ag particles at different Ag concentrations (indicated in legend) in sensors at for ethanol.
(a) Variation of response time at for ethanol with size of Ag particles in sensors and (b) variation of recovery time at in synthetic air with size of Ag particles in sensors.
(a) Variation of sensor signal with ethanol concentration and (b) response behavior for ethanol for sensors with particles of and Ag particles of at operating temperature of .
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