Nanocrystalline tin dioxide thin films as oxidizing gas sensor



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Agapito Serrano, Juan Andrés and Santos Blanco, José Pedro and Martin Barreales, Miguel Ángel and Vásquez, Hernán (2000) Nanocrystalline tin dioxide thin films as oxidizing gas sensor. Electron Technology, 33 (1-2). pp. 55-60. ISSN 0070-9816

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Nanocrystalline tin dioxide has been employed to develop two types of sensor devices. Two electrical properties, resistivity and work function, increase with oxidizing gas adsorption. The first leads to the classical thin film resistive sensor. The other property is used to design a switching diode. Both devices show a ligh sensitivity and linearity under proper design and operating parameters. Typival figures are 100% resistance change and 50 mV voltage shift for 50 ppb of NO₂ in air. A theoretical model is proposed to explain the results.

Item Type:Article
Additional Information:

International Seminar on Semiconductor Gas Sensors (SGS) (1.1998. Ustroń, Poland)

Uncontrolled Keywords:Gas detection; Nitrogen oxides; Pollutants; Sensors; Thin films; Tin dioxide
Palabras clave (otros idiomas):Detección de gases; Óxidos de nitrógeno; Contaminantes; Sensores; Películas delgadas, Dióxido de estaño
Subjects:Sciences > Physics > Electronics
Sciences > Physics > Surfaces (Physics)
ID Code:33178
Deposited On:18 Sep 2015 13:40
Last Modified:10 Dec 2018 14:58

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