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      Strategy and Future Prospects to Develop Room-Temperature-Recoverable NO 2 Gas Sensor Based on Two-Dimensional Molybdenum Disulfide

      review-article
      Author(s): , ,
      Publication date (Electronic):
      Journal: Nano-Micro Letters
      Publisher: Springer Singapore
      Keywords: MoS2, NO2 gas sensors, Light illumination, Heterojunction

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          Highlights

          • MoS 2 shows enormous potential for gas sensing due to its high surface to volume ratio, position-dependent gas molecules adsorption and easy control on morphology.

          • The recent experimental and theoretical strategies to develop NO 2 chemiresistance sensors based on MoS 2 are addressed.

          • A detailed overview of the fabrication of MoS 2 chemiresistance sensors in terms of devices, structure, morphology, defects, heterostructures, metal doping, and under light illumination are discussed.

          Abstract

          Nitrogen dioxide (NO 2), a hazardous gas with acidic nature, is continuously being liberated in the atmosphere due to human activity. The NO 2 sensors based on traditional materials have limitations of high-temperature requirements, slow recovery, and performance degradation under harsh environmental conditions. These limitations of traditional materials are forcing the scientific community to discover future alternative NO 2 sensitive materials. Molybdenum disulfide (MoS 2) has emerged as a potential candidate for developing next-generation NO 2 gas sensors. MoS 2 has a large surface area for NO 2 molecules adsorption with controllable morphologies, facile integration with other materials and compatibility with internet of things (IoT) devices. The aim of this review is to provide a detailed overview of the fabrication of MoS 2 chemiresistance sensors in terms of devices (resistor and transistor), layer thickness, morphology control, defect tailoring, heterostructure, metal nanoparticle doping, and through light illumination. Moreover, the experimental and theoretical aspects used in designing MoS 2-based NO 2 sensors are also discussed extensively. Finally, the review concludes the challenges and future perspectives to further enhance the gas-sensing performance of MoS 2. Understanding and addressing these issues are expected to yield the development of highly reliable and industry standard chemiresistance NO 2 gas sensors for environmental monitoring.

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          Most cited references337

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          Emerging photoluminescence in monolayer MoS2.

          Andrea Splendiani, Liang Sun, Yuanbo Zhang … (2010)
          Novel physical phenomena can emerge in low-dimensional nanomaterials. Bulk MoS(2), a prototypical metal dichalcogenide, is an indirect bandgap semiconductor with negligible photoluminescence. When the MoS(2) crystal is thinned to monolayer, however, a strong photoluminescence emerges, indicating an indirect to direct bandgap transition in this d-electron system. This observation shows that quantum confinement in layered d-electron materials like MoS(2) provides new opportunities for engineering the electronic structure of matter at the nanoscale.
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            The rise of graphene.

            A. K. Geim, K. S. Novoselov (2007)
            Graphene is a rapidly rising star on the horizon of materials science and condensed-matter physics. This strictly two-dimensional material exhibits exceptionally high crystal and electronic quality, and, despite its short history, has already revealed a cornucopia of new physics and potential applications, which are briefly discussed here. Whereas one can be certain of the realness of applications only when commercial products appear, graphene no longer requires any further proof of its importance in terms of fundamental physics. Owing to its unusual electronic spectrum, graphene has led to the emergence of a new paradigm of 'relativistic' condensed-matter physics, where quantum relativistic phenomena, some of which are unobservable in high-energy physics, can now be mimicked and tested in table-top experiments. More generally, graphene represents a conceptually new class of materials that are only one atom thick, and, on this basis, offers new inroads into low-dimensional physics that has never ceased to surprise and continues to provide a fertile ground for applications.
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              Electronics and optoelectronics of two-dimensional transition metal dichalcogenides.

              Qing Hua Wang, Kourosh Kalantar-Zadeh, Andras Kis … (2012)
              The remarkable properties of graphene have renewed interest in inorganic, two-dimensional materials with unique electronic and optical attributes. Transition metal dichalcogenides (TMDCs) are layered materials with strong in-plane bonding and weak out-of-plane interactions enabling exfoliation into two-dimensional layers of single unit cell thickness. Although TMDCs have been studied for decades, recent advances in nanoscale materials characterization and device fabrication have opened up new opportunities for two-dimensional layers of thin TMDCs in nanoelectronics and optoelectronics. TMDCs such as MoS(2), MoSe(2), WS(2) and WSe(2) have sizable bandgaps that change from indirect to direct in single layers, allowing applications such as transistors, photodetectors and electroluminescent devices. We review the historical development of TMDCs, methods for preparing atomically thin layers, their electronic and optical properties, and prospects for future advances in electronics and optoelectronics.
              Article 0 comments Cited 1510 times – based on 0 reviews     Review now
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                Author and article information

                Contributors
                Mukesh Kumar: mkumar@iitrpr.ac.in
                Journal
                Journal ID (nlm-ta): Nanomicro Lett
                Journal ID (iso-abbrev): Nanomicro Lett
                Title: Nano-Micro Letters
                Publisher: Springer Singapore (Singapore )
                ISSN (Print): 2311-6706
                ISSN (Electronic): 2150-5551
                Publication date (Electronic): 4 January 2021
                Publication date PMC-release: 4 January 2021
                Publication date Collection: January 2021
                Volume: 13
                Electronic Location Identifier: 38
                Affiliations
                GRID grid.462391.b, ISNI 0000 0004 1769 8011, Functional and Renewable Energy Materials Laboratory, , Indian Institute of Technology Ropar, ; Rupnagar, Punjab 140001 India
                Article
                Publisher ID: 558
                DOI: 10.1007/s40820-020-00558-3
                PMC ID: 7780921
                PubMed ID: 33425474
                SO-VID: c4561081-8c64-4ed3-a0c0-991b97e7bd2b
                Copyright © © The Author(s) 2020
                License:

                Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

                History
                Date received : 26 August 2020
                Date accepted : 29 October 2020
                Categories
                Subject: Review
                Custom metadata
                issue-copyright-statement © The Author(s) 2021

                Keywords: mos2,no2 gas sensors,light illumination,heterojunction
                Data availability:
                Keywords: mos2, no2 gas sensors, light illumination, heterojunction

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