2026-06-08T07:26:50Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/597432023-07-18T05:05:47Zcom_20.500.14352_14col_20.500.14352_15
Nanocrystalline tin dioxide thin films as oxidizing gas sensor
Agapito Serrano, Juan Andrés
Santos Blanco, José Pedro
Martin Barreales, Miguel Ángel
Vásquez, Hernán
621.38
539.211
Gas detection
Nitrogen oxides
Pollutants
Sensors
Thin films
Tin dioxide
Detección de gases
Óxidos de nitrógeno
Contaminantes
Sensores
Películas delgadas
Dióxido de estaño
Electrónica (Física)
Superficies (Física)
2211.28 Superficies
International Seminar on Semiconductor Gas Sensors (SGS) (1.1998. Ustroń, Poland)
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.
Depto. de Estructura de la Materia, Física Térmica y Electrónica
Fac. de Ciencias Físicas
TRUE
pub
2023-06-20T20:10:21Z
2023-06-20T20:10:21Z
2000
journal article
https://hdl.handle.net/20.500.14352/59743
0070-9816
eng
open access
application/pdf
Institute of Electron Technology, Poland