Quaternary 2D Transition Metal Dichalcogenides (TMDs) with Tunable Bandgap.
Sandhya Susarla,Alex Kutana,Jordan A. Hachtel,Vidya Kochat,Amey Apte,Robert Vajtai,Juan Carlos Idrobo,Boris I. Yakobson,Chandra Sekhar Tiwary,Pulickel M. Ajayan +9 more
TLDR
In this paper, the synthesis of quaternary alloys Mox W1-x S2y Se2(1-y) is reported using chemical vapor deposition and the composition of alloys is tuned by changing the growth temperatures.Abstract:
Alloying/doping in 2D material is important due to wide range bandgap tunability. Increasing the number of components would increase the degree of freedom which can provide more flexibility in tuning the bandgap and also reduces the growth temperature. Here, synthesis of quaternary alloys Mox W1-x S2y Se2(1-y) is reported using chemical vapor deposition. The composition of alloys is tuned by changing the growth temperatures. As a result, the bandgap can be tuned which varies from 1.61 to 1.85 eV. The detailed theoretical calculation supports the experimental observation and shows a possibility of wide tunability of bandgap.read more
Citations
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Two-dimensional transition metal dichalcogenides: interface and defect engineering
TL;DR: Two-dimensional transition metal dichalcogenides (TMDCs) have been considered as promising candidates for next generation nanoelectronics and their corresponding applications in electronic and optoelectronic devices.
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A review on chemiresistive room temperature gas sensors based on metal oxide nanostructures, graphene and 2D transition metal dichalcogenides
Nirav Joshi,Nirav Joshi,Takeshi Hayasaka,Yumeng Liu,Huiliang Liu,Huiliang Liu,Osvaldo N. Oliveira,Liwei Lin,Liwei Lin +8 more
TL;DR: The review summarizes the most significant progresses related to room temperature gas sensing by using hierarchical oxide nanostructures, graphene and its derivatives and 2D transition metal dichalcogenides, highlighting the peculiar gas sensing behavior with enhanced selectivity, sensitivity and long-term stability.
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Bandgap engineering of two-dimensional semiconductor materials
Andrey Chaves,Javad G. Azadani,Hussain Alsalman,Hussain Alsalman,D. R. da Costa,Riccardo Frisenda,A. J. Chaves,Seung Hyun Song,Young Duck Kim,Daowei He,Daowei He,Jiadong Zhou,Andres Castellanos-Gomez,François M. Peeters,Zheng Liu,Christopher L. Hinkle,Sang Hyun Oh,Peide D. Ye,Steven J. Koester,Young Hee Lee,Phaedon Avouris,Xinran Wang,Tony Low +22 more
TL;DR: In this paper, a review of the basic physical principles of these various techniques on the engineering of quasi-particle and optical bandgaps, their bandgap tunability, potentials and limitations in practical 2D device technologies are provided.
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van der Waals Layered Materials: Opportunities and Challenges
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Group 6 transition metal dichalcogenide nanomaterials: synthesis, applications and future perspectives
TL;DR: All aspects of the basic science, physicochemical properties and characterization techniques as well as all existing production methods and applications of G6-TMD nanomaterials are provided in a comprehensive yet concise treatment.
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