Semiconductor gas sensor, diaper, method for detecting gas, method for detecting urine and/or feces, method for determining diaper replacement time, and gas-responsive material

Abstract

An object of the invention is to provide a semiconductor type gas sensor capable of distinguishing and detecting an ammonia gas and a hydrogen sulfide gas with high sensitivity without heating to a high temperature (about 180° C. to 300° C.), a method for detecting gases using the semiconductor type gas sensor, a diaper, a method for detecting urine and/or feces, a method for determining a diaper replacement time, and a gas-sensing material used in the semiconductor type gas sensor. To provide the semiconductor type gas sensor, which includes an electrode and a VO2(M1) phase containing layer provided on the electrode and in which a VO2(M1) phase functions as the gas-sensing material, the diaper, the method for detecting gases, the method for detecting urine and/or feces, the method for determining a diaper replacement time, and the gas-sensing material.

Dependencies are inferred from the claim text.