Inorganic materials for chemical sensors
- Optical sensors are often a combination of optical fibers or waveguides and sensitive layers which consist of organic or metal-organic dyes incorporated in a polymer or silica film which change their absorbance or photoluminescence (fluorescence or phosphorescence) properties due to interaction with the analyte molecules. The focus of this chapter is on the description of inorganic materials used in electrochemical sensors, because these found widespread applications in gas-sensors and ion-selective electrodes. The response of such sensors can be due to a change of inherent properties of the sensing material (conductivity, capacitance or permittivity) or a change of the measured current or voltage in an electrochemical cell (amperometric or potentiometric sensors).
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| https://doi.org/10.1515/9783110733471-003 |
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