Synthesis and Electrophysical Properties of Copper Oxide Films for Gas Sensors
摘要
Abstract
Thin copper oxide films are produced by the sol-gel technique. The films have a fine-grained structure. After annealing at temperatures of 400 and 500°C, the grain size decreases. The films have high values of the gas sensitivity (resistance change of 30%) and low values of the temperature of the maximum gas sensitivity (180–190°C) to ethanol, acetone, and ammonia vapors in the air.