COMPARATIVE EXPERIMENTS ON CAVITAND-COATED PZT RESONANT PIEZO-LAYER AND QCM SENSORS EXPOSED TO ORGANIC VAPORS

摘要

This work illustrates comparative experiments on 10-MHz AT-cut thickness-shear mode quartz crystal microbalance (QCM) sensors and 7-MHz resonant piezo-layer (RPL) sensors made by lead zirconate titanate (PZT) thick films screen-printed on alumina substrate. The sensors were sensitized with cavitand coatings (Qx-Cav and Me-Cav) and exposed to different organic vapors to evaluate their different performances.