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Micromachines
Special Issues
Miniaturized Gas Sensors
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Miniaturized Gas Sensors

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A：Physics".

Deadline for manuscript submissions: closed (30 November 2020) | Viewed by 8253

Special Issue Editors

Prof. Philippe Menini

E-Mail Website
Guest Editor
Electronics and Microsystems, CNRS-LAAS, University of Toulouse III, Toulouse, France
Interests: micro and nanotechnologies; sensors and microsystems for gas detection
Special Issues, Collections and Topics in MDPI journals
Dr. Sandrine Bernardini

E-Mail Website
Guest Editor
Institut Matériaux Microélectronique Nanosciences de Provence (IM2NP), Microsensors and Instrumentation group, Aix-Marseille University, Marseille, France
Interests: gas sensor; metal oxides; nanomaterials; flexible sensors; ultrasonic spray

Special Issue Information

Dear colleagues,

Gas sensors are present in a wide range of applications in industries and consumer life. The sensor need is growing exponentially to facilitate connected objects used in automotive and commercial markets. Hazardous gas detection is crucial for safety and becomes useful for home and office environments for decision help through health monitoring. In recent years, smart city and smart home projects have driven the need for advanced gas sensors working at room temperature. Advancements in semiconductor technology, developments in nanomaterials, and new manufacturers are leading toward gas sensor miniaturization. Power consumption should be minimized to be implemented in embedded systems, and the number of them will increase to enhanced gas detection through wireless communication and collaboration between sensor nodes. Miniaturized and low power gas sensors are also actual needs to be embedded into various devices, such as smartphones or wearable objects in emerging applications.

This Special Issue aims to generate discussions on the latest advances in research on gas sensing technologies and more particularly the challenges and the opportunities offered by miniaturized gas sensors.

Prof. Philippe Menini
Dr. Sandrine Bernardini
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • gas sensors
  • micro- and nanotechnologies
  • nanomaterials
  • morphology
  • electrical characterization
  • reliability
  • electronic nose
  • low power
  • embedded sensors

Published Papers (2 papers)

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Research

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12 pages, 5198 KiB  
Article
A New Miniaturized Gas Sensor Based on Zener Diode Network Covered by Metal Oxide
by Vignesh Gunasekaran, Soffian Yjjou, Eve Hennequin, Thierry Camps, Nicolas Mauran, Lionel Presmanes and Philippe Menini
Micromachines 2021, 12(11), 1355; https://doi.org/10.3390/mi12111355 - 2 Nov 2021
Viewed by 2313
Abstract
The development of “portable, low cost and low consumption” gas microsensors is one of the strong needs for embedded portable devices in many fields such as public domain. In this paper, a new approach is presented on making, on the same chip, a [...] Read more.
The development of “portable, low cost and low consumption” gas microsensors is one of the strong needs for embedded portable devices in many fields such as public domain. In this paper, a new approach is presented on making, on the same chip, a network of head-to-tail facing PN junctions in order to miniaturize the sensor network and considerably reduce the required power for heating each cell independently. This paper is about recognizing a device that integrates both sensing and self-heating. This first study aims to evaluate the possibilities of this type of diode network for use as a gas sensor. The first part concerns the description of the technological process that is based on a doped polysilicon wafer in which a thin layer of metal oxide (a gallium-doped zinc oxide in our case) is deposited by RF sputtering. An electrical model will be proposed to explain the operation and advantage of this approach. We will show the two types of tests that have been carried out (static and dynamic) as well as the first encouraging results of these electrical characterizations under variable atmospheres. Full article
(This article belongs to the Special Issue Miniaturized Gas Sensors)
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Review

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31 pages, 4725 KiB  
Review
Recent Advances in Ammonia Gas Sensors Based on Carbon Nanomaterials
by Alexander G. Bannov, Maxim V. Popov, Andrei E. Brester and Pavel B. Kurmashov
Micromachines 2021, 12(2), 186; https://doi.org/10.3390/mi12020186 - 12 Feb 2021
Cited by 64 | Viewed by 5376
Abstract
This review paper is devoted to an extended analysis of ammonia gas sensors based on carbon nanomaterials. It provides a detailed comparison of various types of active materials used for the detection of ammonia, e.g., carbon nanotubes, carbon nanofibers, graphene, graphene oxide, and [...] Read more.
This review paper is devoted to an extended analysis of ammonia gas sensors based on carbon nanomaterials. It provides a detailed comparison of various types of active materials used for the detection of ammonia, e.g., carbon nanotubes, carbon nanofibers, graphene, graphene oxide, and related materials. Different parameters that can affect the performance of chemiresistive gas sensors are discussed. The paper also gives a comparison of the sensing characteristics (response, response time, recovery time, operating temperature) of gas sensors based on carbon nanomaterials. The results of our tests on ammonia gas sensors using various techniques are analyzed. The problems related to the recovery of sensors using various approaches are also considered. Finally, the impact of relative humidity on the sensing behavior of carbon nanomaterials of various different natures was estimated. Full article
(This article belongs to the Special Issue Miniaturized Gas Sensors)
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