Al-doped ZnO Gas Sensors Toward Safe and Effective Monitoring in Protected Environments

In delicate environments, such as museums, harmful gases may put both human health and sensitive materials at risk. Indeed, effective monitoring of hazardous compounds must be conducted without affecting the surroundings. In these circumstances, visible-light photoactivated metal-oxide semiconductor gas sensors are a suitable alternative to their thermoactivated counterparts. Aluminum-doped zinc oxide (Al:ZnO) emerges as a promising material for sustainable gas sensors in such applications.