Scientists from Penza State University (PSU), together with colleagues from Saratov, have created a new chip that can detect 10 different gas molecules in 1 billion air particles. It is a multi-sensor system and can distinguish gases such as methanol, ethanol, isopropanol, butanol and ammonia. This innovation will help to easily and accurately determine the composition of air, which is of great importance in various fields.
Semiconductor gas sensors are now used to detect gases, but they cannot always accurately determine the type of gas. The new chip provides a solution to this problem through systems of multiple sensors, each containing many elements that react to a particular gas. Such a system processes the signals of each element that give information about the composition of the gas mixture.
The scientists developed this chip using ultraviolet and low temperature annealing. This made it possible to create a stable instrument with high sensitivity, capable of detecting even small gas concentrations. The chip prototype was tested in the research laboratory at Saratov State Technical University and has already attracted the interest of many companies for application in production.
Source: Ferra
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