Chemical Gas Sensors Studied at SENSOR Lab, Brescia (Italy): From Conventional to Energy-Efficient and Biocompatible Composite Structures.

Vardan Galstyan,Veronica Sberveglieri,Navpreet Kaur,Estefanía Núñez-Carmona,Elisabetta Comini,Dario Zappa

doi:10.3390/s20030579

Vardan Galstyan, Veronica Sberveglieri + Show 4 more

Open Access

https://doi.org/10.3390/s20030579

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Abstract

In this paper, we present the investigations on metal oxide-based gas sensors considering the works performed at SENSOR lab, University of Brescia (Italy). We reported the developments in synthesis techniques for the preparation of doped and functionalized low-dimensional metal oxide materials. Furthermore, we discussed our achievements in the fabrication of heterostructures with unique functional features. In particular, we focused on the strategies to improve the sensing performance of metal oxides at relatively low operating temperatures. We presented our studies on surface photoactivation of sensing structures considering the application of biocompatible materials in the architecture of the functional devices as well.

Highlights

Chemical gas sensors based on oxide materials are among the most studied structures for the manufacturing of high-performance sensing systems
The optimization of conventional synthesis methods and the studies on the tuning of oxide materials properties using different strategies have been carried out and up to now. In this Special Issue dedicated to the State of the art of Sensors in Italy, we report our activities on the fabrication of chemical gas sensors performed at the SENSOR Lab in Brescia
We presented an overview activities oninstrument the synthesis andon application of metal manufacturing of electronic nose (EN)

Summary

Introduction

Chemical gas sensors based on oxide materials are among the most studied structures for the manufacturing of high-performance sensing systems. The studies have been performed on the design and manufacturing of mobile and low power consumption sensing devices In this regard, nanomaterials with their unique electrical properties are going to replace the traditional thick-film structures in the architecture of gas sensors [4,5]. The optimization of conventional synthesis methods and the studies on the tuning of oxide materials properties using different strategies have been carried out and up to now. In this Special Issue dedicated to the State of the art of Sensors in Italy, we report our activities on the fabrication of chemical gas sensors performed at the SENSOR Lab in Brescia. We discussed the improvement of sensing performances of the obtained structures considering the optimization of their operating temperature

Substrate Materials

Improvement of Sensing Performance Including the Operating Temperature

O3 sensors

Surface Photoactivation

Findings

Conclusions