The
Use of Organo-siloxane Polymer in Gas Detection
G. TELIPAN, M. IGNAT, C. RACLES, M. CAZACU
Abstract. A siloxane-organic polymer was used as sensing element in a
gas sensor device. The sensor was made by thick film technology. An
alumina substrate 6´6´0.6 mm was used. An interdigitated electrode array
was screen-printed on the substrate by Au conductive ink. The sensor
tested at a concentration of 100 ppm CO2 and NOx provided a voltage of 70
and 4 mV, respectively, after 10 minutes gas exposure. The polymer was
dissolved in chloroform and deposed by spin coating as a sensitive layer
on the substrate over electrode. |