Chemisorption and sensitivity at semiconductor sensors revisited

•Extension of Wolkenstein theory to dissociative chemisorption on a semiconductor surface is discussed.•Band bending and adsorbate coverage for different oxygen pressure and doping in tin oxide are derived.•Consequences for the sensor conductivity and sensitivity are dicussed. In this work we derive...

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Veröffentlicht in:	Sensors and actuators. B, Chemical Chemical, 2019-04, Vol.285, p.232-239
Hauptverfasser:	Mirabella, D.A., Buono, C., Aldao, C.M., Resasco, D.E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorbates Adsorption isotherms Chemisorption Conductivity Gas pressure Gas sensors Metal oxides Organic chemistry Semiconductor gas sensors Sensitivity
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