pH dependence of the Si/SiO2 interface state density for EOS systems: Quasi-static and AC conductance methods

作者: J.L. Diot , J. Joseph , J.R. Martin , P. Clechet

DOI: 10.1016/0022-0728(85)85053-1

关键词: HeterojunctionDielectricQuasistatic processElectrolyteChemistryConductanceSiliconAnalytical chemistryElectrical impedanceCapacitance

摘要: Abstract Two combined impedance methods, developed for solid state MOS (Metal Oxide Semiconductor) devices, are used to check the electrical properties of home-made EOS (Electrolyte systems. This set-up, fitted with a three-electrode monitoring system, allows both quasi-static capacitance and ac conductance wet heterostructures be measured. The two sets data, which complement each other perfectly, show that oxidized silicon pH has an extremely small erratic influence on Si/SiO 2 interface density. result confirms sensitive dielectric in such sensors is SiO /electrolyte interface.

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