Growth of single crystals of WSe2 by sublimation method

Agarwal, M. K.; Patel, Hasmukh S.; Nagireddy, K.

doi:10.1016/0022-0248(77)90099-9

Cited by 21 publications

(4 citation statements)

References 8 publications

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“…This route has been quite successful for the synthesis of a wide variety of bulk TMD crystals (MoS 2 , WS 2 , MoSe 2 , WSe 2 , TaSe 2 , etc. ), with bulk crystals reaching >10 × 10 mm (37,40,41). Although bulk crystals of TMDs provide a route for achieving ultrahigh-quality, crystalline flakes of materials for scientific investigations, they are not considered suitable for large-area TMD electronics.…”

Section: Figurementioning

confidence: 99%

“…Moreover, in the absence of a controllable and sustainable substitutional doping scheme, one has to rely on the work function of metal contacts to inject the desired type of carriers (electrons or holes) into these 2D semiconductors. Such www.annualreviews.org • Beyond Graphene 20.9 Changes may still occur before final publication online and in print metal-to-semiconductor contacts are dominated mostly by Schottky barriers, which hinder efficient current transmission (41,97). Moreover, the phenomenon of Fermi-level pinning limits the tunability of the alignment of the metal Fermi level with the bands of the semiconductor, which is why only electron transport was observed in the first generation of MoS 2 FETs irrespective of the choice of metal contacts (Figure 7a) (34).…”

Section: Transition Metal Dichalcogenide Electronicsmentioning

confidence: 99%

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Beyond Graphene: Progress in Novel Two-Dimensional Materials and van der Waals Solids

Das

Robinson

Dubey

et al. 2015

Annu. Rev. Mater. Res.

594

405

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Interest in 2D materials and van der Waals solids is growing exponentially across various scientific and engineering disciplines owing to their fascinating electrical, optical, chemical, and thermal properties. Whereas the micromechanical exfoliation technique has been adopted for rapid material characterization and demonstration of innovative device ideas based on these 2D systems, significant advances have recently been made in large-scale homogeneous and heterogeneous growth of these materials. This review reflects recent progress and outlines future prospects of these novel 2D materials. We provide a holistic overview of the different synthesis and characterization techniques, electronic and photonic device characteristics, and catalytic properties of transition metal dichalcogenides and their heterostructures. We also comment on the challenges that need to be overcome for full-scale commercial implementation of this novel class of layered materials. 20.1

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Section: Figurementioning

confidence: 99%

Section: Transition Metal Dichalcogenide Electronicsmentioning

confidence: 99%

Beyond Graphene: Progress in Novel Two-Dimensional Materials and van der Waals Solids

Das

Robinson

Dubey

et al. 2015

Annu. Rev. Mater. Res.

594

405

View full text Add to dashboard Cite

show abstract

“…Most of the TMDC compounds studied can be considered structurally as strongly bonded two-dimensional X-M-X (M = metal, X = chalcogen) layers loosely coupled to one another by relatively weak van der Waals type forces [1][2][3][4]. Recent investigations have shown that the layered type semiconducting group VI transition metal dichalcogenides, which absorb visible and near-IR light are particularly interesting materials for photoelectrochemical solar energy conversion.…”

Section: Introductionmentioning

confidence: 99%

Structural, optical and microscopic studies of tungsten substituted molybdenum diselenide thin films

Sathe¹,

Hankare²,

Manikshete³

et al. 2010

Journal of Alloys and Compounds

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“…Also, the layered nature of MDC's allows the generation of fresh surfaces by recleaving the crystal with adhesive tape. Relatively large single crystals (1-2 cm2) with a range of doping densities can be prepared by chemical vapor transport (23)(24)(25)(26)(27)(28), sublimation (24,29), or Bridgeman techniques (21,24,30).…”

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confidence: 99%

Design and performance of a minielectrochemical cell for spatial resolution of two-dimensional structures

Howard¹,

Koval²

1991

Anal. Chem.

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Electrochemical measurements on 2-dlmensional layered materials, such as metal dlchalcogenldes and highly ordered pyrolytic graphite, often require Isolation of the crystal edges or defects. Masking the crystal with epoxy may be undesirable since this prevents recleavlng the electrode to expose a fresh surface. A minielectrochemical cell Is presented that allows experiments to be performed In a single drop (1-3 mm diameter) of electrolyte held against the working electrode. The electrochemical behavior and operational considerations of the cell for an aqueous and nonaqueous system are compared. While the aqueous system generally maintains sem-IlnfinHe linear diffusion, the drop geometry In the nonaqueous system Induces thin-layer effects. Although some applications may not be possible, utilization of the cell for semiconductor electrochemistry Is established. Spatially resolved electrochemistry is demonstrated for n-WSe2 and highly ordered pyrolytic graphite.

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Growth of single crystals of WSe2 by sublimation method

Cited by 21 publications

References 8 publications

Beyond Graphene: Progress in Novel Two-Dimensional Materials and van der Waals Solids

Beyond Graphene: Progress in Novel Two-Dimensional Materials and van der Waals Solids

Structural, optical and microscopic studies of tungsten substituted molybdenum diselenide thin films

Design and performance of a minielectrochemical cell for spatial resolution of two-dimensional structures

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