Chemoresistive metal oxide gas sensor: working principles and applications

Autori

DOI:

https://doi.org/10.1478/AAPP.99S1A41

Parole chiave:

Gas sensors, MOS, resistive sensors

Abstract

The aim of this paper is to explain to young students why chemoresistive metal oxide semiconductors (MOS) gas sensors are important and widely employed in many applications. The paper deals with the fundamentals principles of these devices and their continuous improvement, due to high level of compatibility with microelectronics technology and the employment of nanostructured materials as sensing interfaces. The main operating conditions and mechanisms are also described, in order to better understand the guidelines followed to improve these devices in terms of sensing performances (sensitivity, selectivity, fast response/recovery time, repeatability, and reliability) finalized to their practical applicability. Finally, we suggest a possible brief activity on how to explore gas <sensor employment and operating features in a classroom.

Biografie autore

  • Mariangela Catena Latino, Università degli Studi di Messina

    Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Viale F. Stagno d'Alcontres 31, 98166 Messina

  • Giovanni Neri, Università degli Studi di Messina
    Dipartimento di Ingegneria, Contrada di Dio, 98158 Messina

Dowloads

Pubblicato

2021-09-30

Fascicolo

Vol 99, SUPPL NO 1 (2021): New Horizons in Teaching Science 2019

Sezione

New Horizons in Teaching Science (Conference Proceedings)

Licenza

Creative Commons License
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