Projects_ess

Investigation and development of highly sensitive gas sensors based on metal oxide semiconductors for air quality monitoring

Due to the increase in atmospheric pollution, including various toxic gases, the effective detection of pollutants has become a crucial objective over the last years. Harmful and toxic gases are usually detected by gas sensors based on optical, acoustic, and metal oxide semiconductor (MOS) sensors. Among them, MOS sensors are in high demand for industrial sectors due to their low cost, wide temperature range operation capability, as well as effectiveness in the detection of a variety of toxic gases. Furthermore, toxic gases are also a serious safety issue for energy storage systems. Achieving a high level of safety and reliability is especially important for lithium-ion batteries (LIB), which release various toxic substances during thermal dispersal resulting in a fire. Thus, this research targets the synthesis of novel highly sensitive gas sensors based on MOS (ZnO, SnO2 and WO3) by the methods of magnetron sputtering and electrospinning with doping transition metal to determine harmful and toxic gases in low concentration.

The project goal is the development of highly sensitive miniaturized gas sensors based on a polycrystalline MOS and to enhance their morphological, electrical and optical properties, as well as to increase the sensitivity and response time to toxic gases, such as NOx and COx. In this regard, the development of highly sensitive gas sensors are to be used in gas environment monitoring systems, monitoring of the atmosphere ecological conditions, as well as in the ore mining and oil-and-gas industries.