UC REGENTS

Chemiresistive sensors, which transduce target gas concentrations based on the change in resistance of a sensing material, provide sensitive, low-cost detection of gaseous analytes in applications such as environmental monitoring, quality control, and clinical diagnostics. Semiconducting metal oxides (MOX) such as SnO2 are an industry-standard material system for chemiresistive sensing. We aim to develop MOX-based sensors with stable long-term characteristics by investigating how the structural and electronic properties of MOX respond to different operating temperatures, durations, and environments. To enhance the stability, sensitivity, and selectivity of our sensors, we are also investigating catalytically active noble metals, such as Pt, Au, and Pd, loaded onto MOX materials to form noble metal-loaded MOX nanocomposites. These nanocomposites are integrated with interdigited electrodes to form fully functioning sensors. To understand the sensing mechanisms of pristine MOX and metal-..

Also known as: Maboudian Lab

Primary location: Berkeley United States