Proceedings ArticleDOI
Enhanced sensing response with complete recovery of MoS2 sensor under photoexcitation
Neeraj Goel,Rajesh Kumar,Mahesh Kumar +2 more
- Vol. 1942, Iss: 1, pp 050060
TLDR
In this paper, the authors report a facile strategy to develop highly sensitive, extremely selective and fully recoverable gas sensor at room temperature through photo excitation, which showed an improved response along with the complete recovery upon NO2 exposure.Abstract:
Molybdenum disulfide (MoS2), a just three atoms thick semiconductor has opened up new avenues in gas sensing because of its high surface–to-volume ratio. However, the low sensitivity, incomplete recovery and poor selectivity at room temperature restricts its uses for practical gas sensors. Here, we report a facile strategy to develop highly sensitive, extremely selective and fully recoverable gas sensor at room temperature through photo excitation. Although, pristine MoS2 gas sensor showed a considerable response and incomplete recovery to NO2 at room temperature. Though after photo excitation, the MoS2 sensor exhibited an improved response along with the complete recovery upon NO2 exposure.read more
Citations
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Journal ArticleDOI
Electronic properties and low lattice thermal conductivity (κl) of mono-layer (ML) MoS2: FP-LAPW incorporated with spin–orbit coupling (SOC)
D. P. Rai,Tuan V. Vu,Amel Laref,Md. Anwar Hossain,Enamul Haque,Sohail Ahmad,Rabah Khenata,Raj Kumar Thapa +7 more
TL;DR: In this article, the authors examined the structure of monolayer MoS2, in which the hole in the center of the hexagonal cage is considered as a void atom, termed 1H-MoS2.
Nanoscale Heterostructured Materials Based on Metal Oxides for a Chemiresistive Gas Sensor
Biplob Mondal,Pranjal Gogoi +1 more
Journal ArticleDOI
Large-area growth of MoS2 at temperatures compatible with integrating back-end-of-line functionality
Jun Lin,Scott Monaghan,Neha Sakhuja,Farzan Gity,Ravindra Kumar Jha,Emma M. Coleman,James P. Connolly,Conor P. Cullen,Lee A. Walsh,Teresa Mannarino,Michael Schmidt,Brendan Sheehan,Georg S. Duesberg,Georg S. Duesberg,Niall McEvoy,Navakanta Bhat,Paul K. Hurley,Paul K. Hurley,Paul K. Hurley,Ian M. Povey,Shubhadeep Bhattacharjee +20 more
TL;DR: In this article, the authors report on the growth of transition metal dichalcogenides (MoS2) on SiO2, amorphous-Al2O3, c-plane sapphire, and glass substrates achieved at low temperatures (350-550 °C).
Journal ArticleDOI
Noble metal nanoparticle decorated tungsten diselenide nanosheets for ultrasensitive detection of NO2 at room temperature
TL;DR: In this paper , the interaction of NO2 gas with functionalized 2D WSe2 was investigated and the results revealed the enhancement in sensing response upon decoration (R% = 170% for Audecoration and 220% for Ptdecoration at 5 ppm NO2) at room temperature.
Journal ArticleDOI
Electronic Properties of Bulk and Single-Layer MoS2 Using ab Initio DFT: Application of Spin-Orbit Coupling (SOC) Parameters
TL;DR: In this article, the density functional theory (DFT) calculations with different functionals and spin-orbit coupling (SOC) parameters were carried out to study the electronic properties of bulk and monolayer transition metal dichalcogenides (TMDCs).
References
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Journal ArticleDOI
Emerging Photoluminescence in Monolayer MoS2
Andrea Splendiani,Liang Sun,Yuanbo Zhang,Tianshu Li,Jonghwan Kim,Chi-Yung Chim,Giulia Galli,Feng Wang,Feng Wang +8 more
TL;DR: This observation shows that quantum confinement in layered d-electron materials like MoS(2), a prototypical metal dichalcogenide, provides new opportunities for engineering the electronic structure of matter at the nanoscale.
Journal ArticleDOI
Synthesis of Large‐Area MoS2 Atomic Layers with Chemical Vapor Deposition
Yi-Hsien Lee,Xin-Quan Zhang,Wenjing Zhang,Mu-Tung Chang,Cheng-Te Lin,Kai-Di Chang,Ya-Chu Yu,Jacob Tse-Wei Wang,Chia-Seng Chang,Lain-Jong Li,Tsung-Wu Lin +10 more
TL;DR: Optical, microscopic and electrical measurements suggest that the synthetic process leads to the growth of MoS(2) monolayer, and TEM images verify that the synthesized MoS (2) sheets are highly crystalline.
Journal ArticleDOI
Adsorption of gas molecules on monolayer MoS2 and effect of applied electric field
TL;DR: Theoretical results are consistent with the recent experiments and suggest MoS2 as a potential material for gas sensing application because of its ability to be significantly modulated by a perpendicular electric field.
Journal ArticleDOI
Air Pollution and Health in Urban Areas
TL;DR: In this paper, recent reviews of the World Health Organization, other review papers, and more recent literature on the human health effects of current air pollution trends in urban areas are reviewed and summarized.
Journal ArticleDOI
Mesoscale Imperfections in MoS2 Atomic Layers Grown by a Vapor Transport Technique
TL;DR: The electrical imaging of dendritic ad-layers and grain boundaries in monolayer molybdenum disulfide (MoS2) grown by a vapor transport technique using microwave impedance microscopy shows ability to map the local electrical properties in a rapid and nondestructive manner.