H. Nanto et al., DOPING EFFECT OF SNO2 ON GAS-SENSING CHARACTERISTICS OF SPUTTERED ZNOTHIN-FILM CHEMICAL SENSOR, Sensors and actuators. B, Chemical, 36(1-3), 1996, pp. 384-387
The SnO2 content dependence of the sensitivity of sputtered SnO2-doped
ZnO thin film chemical sensor is studied for various gases. It is fou
nd that the SnO2(78 wt%)-doped ZnO thin film chemical sensor exhibits
a high sensitivity and good selectivity for C2H5OH gas. The sensitivit
y of the SnO2(78 wt%)-doped ZnO thin film chemical sensor responds to
the freshness change of alcohols, indicating that the sensor is useful
for freshness detection of alcohols.