Date of Award
Dissertation - Restricted
Doctor of Philosophy (PhD)
Electrical and Computer Engineering
A chemical sensor is a device that can detect the presence of a chemical analyte in a given environment. In many cases, the sensor also quantifies the amount or concentration of the chemical. As a transducer, a chemical sensor typically converts chemical energy into an electrical signal. This process generally occurs in many steps as depicted in Fig. 1.1. The analyte first interacts with a chemically sensitive element (often a coating), causing a change in the coating's properties (mechanical or electrical). The sensor platform is designed to be sensitive to these perturbations; as the chemically sensitive element is exposed to the analyte, one or more characteristics of the sensor platform change. This signal is then measured and converted to an electrical signal by the read-out technology...