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Electrolyte–insulator–semiconductor sensor

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Principle of EIS sensor

Within electronics, an Electrolyte–insulator–semiconductor (EIS) sensor is a sensor that is made of these three components:[1]

  • an electrolyte with the chemical that should be measured
  • an insulator that allows field-effect interaction, without leak currents between the two other components
  • a semiconductor to register the chemical changes

The EIS sensor can be used in combination with other structures, for example to construct a light-addressable potentiometric sensor (LAPS).

References

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  1. ^ Poghossian, Arshak; Schöning, Michael J. (2020). "Capacitive Field-Effect EIS Chemical Sensors and Biosensors: A Status Report". Sensors. 20 (19): 5639. Bibcode:2020Senso..20.5639P. doi:10.3390/s20195639. PMC 7584023. PMID 33023133.