J. P. Santos, I. Sayago, C. Sánchez-Vicente, J. Lozano
XXII Conferenza Nazionale Sensori e Microsistemi (AISEM 2024)
Del 7 al 9 de febrero de 2024, Universitá di Bologna, Italia.
Carbon dioxide is considered a greenhouse gas and is the main cause of global warming. CO2 emissions are increasing each year (420 ppm this year). Therefore, it is important to be able to detect these CO2 levels with sensors that can work at room temperature (RT). Metal oxide (MOX) semiconductor nanomaterials have generated great expectations as sensitive layers due to their unusual optical, electronic and chemical properties. MOX present a high conductivity and an elevated optical transparency in the UV-VIS, and can be functionalized by rare-earth element doping for optoelectronic applications.
In this work we present a system to measure optical and resistive properties of sensors based on these materials simultaneously. An array of tin oxide and zinc oxide nanoparticle sensors doped with terbium has been made in order to explore its performance as an optoelectronic device for environmental applications.
