Sensing of CO and NO on Cu-Doped MoS<sub>2</sub>Monolayer-Based Single Electron Transistor: A First Principles Study

Sharma, Archana; Khan, Mohd. Shahid; Husain, M.; Khan, Md. Shahzad; Srivastava, Anurag

doi:10.1109/jsen.2018.2801865

Cited by 82 publications

(20 citation statements)

References 45 publications

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“…The overlaps of DOS peaks meant the mixing between molecular orbitals, proving the existence of an interaction between gas and sensing materials [33]. The mixing of molecular orbitals was helpful to charge transfer so that it can augment the adsorption interaction between gas and material surface [34][35][36]. Hence, the mixing between molecular orbitals was compared to evaluate the adsorption effects of gas molecules.…”

Section: Resultsmentioning

confidence: 99%

Sensing Behavior of Two Dimensional Al- and P-Doped WS2 Toward NO, NO2, and SO2: an Ab Initio Study

et al. 2020

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Two-dimensional transition metal dichalcogenides (2D TMDs), such as WS 2 , are considered to have the potential for high-performance gas sensors. It is a pity that the interaction between gases and pristine 2D WS 2 as the sensitive element is too weak so that the sensor response is difficult to detect. Herein, the sensing capabilities of Al-and Pdoped WS 2 to NO, NO 2 , and SO 2 were evaluated. Especially, we considered selectivity to target gases and dopant concentration. Molecular models of the adsorption systems were constructed, and density functional theory (DFT) was used to explore the adsorption behaviors of these gases from the perspective of binding energy, band structure, and density of states (DOS). The results suggested that doping atoms could increase the adsorption strength between gas molecules and substrate. Besides, the sensitivity of P-doped WS 2 to NO and NO 2 was hardly affected by CO 2 or H 2 O. The sensitivity of Al-doped WS 2 to NO 2 and SO 2 was also hard to be affected by CO 2 or H 2 O. For NO detection, the WS 2 with 7.4% dopant concentration had better sensitive properties than that with a 3.7% dopant concentration. While for SO 2 , the result was just the opposite. This work provided a comprehensive reference for choosing appropriate dopants (concentration) into 2D materials for sensing noxious gases.

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Section: Resultsmentioning

confidence: 99%

Sensing Behavior of Two Dimensional Al- and P-Doped WS2 Toward NO, NO2, and SO2: an Ab Initio Study

et al. 2020

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“…Neuromorphic phototransistors were demonstrated by using charge transfer effects in perovskite and MoS 2 hybrid structure, which emulated human sensory adaptation ( Figure 8 c) [ 89 ]. Furthermore, the improvement of sensing properties can be achieved by the doping methods in 2D materials [ 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 ]. As an example, Au nanoparticles on MoS 2 induced n-doping effects, which significantly enhanced chemical sensing properties with respect to various volatile organic compounds ( Figure 8 d) [ 109 ].…”

Section: Tmd Dopingmentioning

confidence: 99%

Recent Advances in Electrical Doping of 2D Semiconductor Materials: Methods, Analyses, and Applications

et al. 2021

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Two-dimensional materials have garnered interest from the perspectives of physics, materials, and applied electronics owing to their outstanding physical and chemical properties. Advances in exfoliation and synthesis technologies have enabled preparation and electrical characterization of various atomically thin films of semiconductor transition metal dichalcogenides (TMDs). Their two-dimensional structures and electromagnetic spectra coupled to bandgaps in the visible region indicate their suitability for digital electronics and optoelectronics. To further expand the potential applications of these two-dimensional semiconductor materials, technologies capable of precisely controlling the electrical properties of the material are essential. Doping has been traditionally used to effectively change the electrical and electronic properties of materials through relatively simple processes. To change the electrical properties, substances that can donate or remove electrons are added. Doping of atomically thin two-dimensional semiconductor materials is similar to that used for silicon but has a slightly different mechanism. Three main methods with different characteristics and slightly different principles are generally used. This review presents an overview of various advanced doping techniques based on the substitutional, chemical, and charge transfer molecular doping strategies of graphene and TMDs, which are the representative 2D semiconductor materials.

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“…Single electron transistor (SET) is a 3‐terminal nanoelectronic device, whose construction is similar to FET, and both are governed by the electrostatic effect [33]. In SET, a quantum dot (QD, also known as island) working as the channel region is separated by tunnel junctions to restrict the electrons transferring from source to drain regions, i.e.…”

Section: Sensor Classifications and Sensing Mechanismsmentioning

confidence: 99%

“…These nanomaterials, such as carbon nanotube (CNT) and the others in two-dimensional (2D) structure, usually have a large specific surface area, strong chemical activity and high carrier mobility, giving rise to their good reactivity with gas molecules [23][24][25][26][27][28][29]. In the meanwhile, the chemical gas sensors prepared based on these materials, as demonstrated, have many outstanding properties such as fast response, high sensitivity, appropriate working temperature and low cost [30][31][32][33][34]. In recent years, the application of nanomaterials-based gas sensors for detecting SF 6 decomposed species has been prevailingly studied, especially regarding the exploration of the new-emerged 2D nanomaterials which is greatly favoured by the scholars.…”

Section: Introductionmentioning

confidence: 99%

Nanomaterials‐based gas sensors of SF ₆ decomposed species for evaluating the operation status of high‐voltage insulation devices

et al. 2019

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In recent years, many novel sensing nanomaterials were explored experimentally and theoretically as chemical gas sensors to detect sulphur hexafluoride (SF 6) decomposed species with rapid response, high sensitivity and selectivity, as well as low cost, in order to estimate and guarantee the operation status of SF 6 insulation devices. However, there has been no systemic review yet to comprehensively understand their sensing mechanism and conclude their sensing application. Such kinds of nanomaterials include traditional carbon-based materials such as carbon nanotube and graphene, metal oxides such as SnO 2 , ZnO and TiO 2 , transition metal dichalcogenides such as MoS 2 monolayer and MoTe 2 monolayer as well as graphene-like InN monolayer. A systemic review would be significant to give a profound insight into the exploration of nanomaterial-based chemical gas sensors in the field of electrical engineering and to help youth scholars first stepping in this field rapidly master the progress inside. Thus, the authors attempt to complete this review here. They are hopeful that this review could provide some guidance to fulfil such purpose in the near future, and it would be full of perspective to explore more novel nanomaterials as defect indicators in SF 6 insulated devices. Furthermore, it is their hope that this review could broaden the sensing application of admirable nanomaterials in many fields such as environmental monitoring and pollutant scavenging.

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Sensing of CO and NO on Cu-Doped MoS₂Monolayer-Based Single Electron Transistor: A First Principles Study

Cited by 82 publications

References 45 publications

Sensing Behavior of Two Dimensional Al- and P-Doped WS2 Toward NO, NO2, and SO2: an Ab Initio Study

Sensing Behavior of Two Dimensional Al- and P-Doped WS2 Toward NO, NO2, and SO2: an Ab Initio Study

Recent Advances in Electrical Doping of 2D Semiconductor Materials: Methods, Analyses, and Applications

Nanomaterials‐based gas sensors of SF ₆ decomposed species for evaluating the operation status of high‐voltage insulation devices

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Sensing of CO and NO on Cu-Doped MoS2Monolayer-Based Single Electron Transistor: A First Principles Study

Cited by 82 publications

References 45 publications

Sensing Behavior of Two Dimensional Al- and P-Doped WS2 Toward NO, NO2, and SO2: an Ab Initio Study

Sensing Behavior of Two Dimensional Al- and P-Doped WS2 Toward NO, NO2, and SO2: an Ab Initio Study

Recent Advances in Electrical Doping of 2D Semiconductor Materials: Methods, Analyses, and Applications

Nanomaterials‐based gas sensors of SF 6 decomposed species for evaluating the operation status of high‐voltage insulation devices

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Sensing of CO and NO on Cu-Doped MoS₂Monolayer-Based Single Electron Transistor: A First Principles Study

Nanomaterials‐based gas sensors of SF ₆ decomposed species for evaluating the operation status of high‐voltage insulation devices