Modeling of the conductivity alteration in the gold thin film-based mercury sensor using the fuchs theory
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We report on the development and testing of the metallic mercury sensor. Sensor is based on the gold thin film layer where sensing is achieved by formation of the gold-mercury amalgam. Complete technological procedure and design is performed at IHTM-CMTM in Belgrade, Serbia. We test the sensor by exposing it to the various mercury concentrations and compare results to the Langmuir adsorption theory. We explain resistivity alteration during gold-mercury adsorption by the Fuchs theory of conductivity in thin films. This is the basis for the more detailed understanding of the sensor functionality.
Keywords:mercury sensors / thin films / Langmuir adsorption theory
Source:2012 28th International Conference on Microelectronics (MIEL), 2012, 151-153