Chemoresistive Gas Sensors Based on Low Dimensional Semiconducting Nano-Structures
A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Chemical Sensors".
Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 12885
Special Issue Editors
Interests: synthesis of novel sensing materials; nanostructured materials for chemical and electrochemical sensing; metal oxide semiconductor-based gas sensors; biosensors; fabrication of chemical sensors; environmental sensors; automotive gas sensors; biomedical sensors
Special Issues, Collections and Topics in MDPI journals
Interests: synthesis of novel sensing materials; nanostructured materials for chemical and metal oxide semiconductor-based gas sensors; fabrication of chemical sensors; environmental sensors; automotive gas sensors; biomedical sensors
Special Issue Information
At present, gas sensors are widely used to improve the quality of life. Indeed, even though life is impossible without gases, some gases are highly toxic and dangerous to our lives. Therefore, the early detection of toxic gases and vapors by means of simple electronic devices is very important in environmental control. The detection of gases is also of utmost interest in other areas, such as in industrial processes, the automotive industry, the biomedical field, agriculture, and so on. Among different devices for the early detection of toxic gases, chemoresistive gas sensors are very popular due to their high sensitivity, fast dynamics, small size, and low cost.
In chemoresistive gas sensors, the sensing mechanism relies on the interaction of gas molecules with the sensing material. Therefore, the sensing material morphology is one of the key aspects. Accordingly, it is expected that, in view of their high surface area and gas adsorption sites, low-dimensional semiconducting materials such as nanowires, nanofibers, nanorods, nanobelts, nanosheets, etc. may provide better sensing characteristics than bulk materials. These 1-D and 2-D low-dimensional semiconducting materials can be further sensitized to gas molecules by means of different preparation and modification strategies, such as noble metal functionalization, composite heterojunctions, doping, etc.
Hence, this Special Issue welcomes original research contributions and state-of-the-art reviews from academia and industry regarding the synthesis and characterization of low-dimensional semiconductors and their application in chemoresistive gas sensing. Innovative solutions such as the in situ growth of these low-dimensional nanostructures on nanosized chemoresistive platforms for fabricating low-power and nanosized sensors are also welcome. The Special Issue topics include but are not limited to:
- The synthesis of 1-D and 2-D semiconducting materials.
- Nanowire-, nanofiber-, nanorod-, nanobelt-metal oxide chemoresistive gas sensors.
- Functionalization of low-dimensional semiconducting materials.
- Nanosheets of metal oxide and metal disulfides.
- Core–shell low-dimensional semiconductors.
- Nanocomposites of metal oxide on low-dimensional carbon (CNTs, graphene) supports.
- Nanosized, low-power consumption chemoresistive gas sensors.
Prof. Mrinal Pal
Dr. Ali Mirzaei
Guest Editors
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Keywords
- nanowires
- nanofibers
- nanobelts
- nanorods
- nanosheets
- semiconducting nanosheets of metal-oxide and metal disulfides
- gas sensing
- chemoresistive gas sensors
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