MoS2 (2H Molybdenum Disulfide)

2H MoS2 Molybdenum Disulfide MoS2 (2H phase) is a semiconductor with an indirect band gap of 1.2 eV. Monolayer MoS2 has a band gap of ~1.8 eV. Molybdenum Disulfide is used for example as a photodetector and transistor. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. MoS2 belongs to the group-VI transition metal dichalcogenides (TMDC). To buy MoS2 crystals please click here.

The 2H phase MoS2 crystals produced at HQ Graphene have a typical lateral size of ~0.8-1 cm, hexagonal/rectangular shaped and have a metallic appearance. We produce both n-type and p-type MoS2, having a typical charge carrier density of ~1015cm-3 at room temperature. A selection of peer review publications on the MoS2 crystals we sell can be found below.

2H-MoS2 crystal properties
Crystal size ~10 mm
Electrical properties Semiconductor, n-type (p-type is also available)
Crystal structure hexagonal
Unit cell parameters a = b = 0.315 nm, c = 1.229 nm, α = β = 90°, γ = 120°
Monolayer properties Link to C2DB containing calculated properties
Type Synthetic
Purity >99.995 %
Characterized by XRD, Raman, EDX, Hall measurement
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The single crystal MoS2 is characterized using:

XRD: single crystal and powder X-ray diffraction (D8 Venture Bruker and D8 Advance Bruker)
EDX: Energy-dispersive X-ray spectroscopy for stoichiometric analysis
Raman: 785 nm Raman system
Hall measurement: Extraction of charge carrier density and doping in the Van der Pauw geometry.

Raman, XRD and EDX on 2H MoS2:

Click on an image to zoom

X-ray diffraction on a 2H-MoS2 single crystal aligned along the (001) plane. XRD was performed at room temperature using a D8 Venture Bruker. The 5 XRD peaks correspond, from left to right, to (00l) with l = 2, 4, 6, 8, 10

Powder X-ray diffraction (XRD) of a single crystal MoS2. X-ray diffraction was performed at room temperature using a D8 Venture Bruker.

Stoichiometric analysis of a single crystal MoS2 by Energy-dispersive X-ray spectroscopy (EDX).

Raman spectrum of a single crystal MoS2. Measurement was performed with a 785 nm Raman system at room temperature.

HQ Graphene Wiki on:

2H-MoS2 (Molybdenum Disulfide)

1. Beom Seo Kim et al., "Determination of the band parameters of bulk 2H-MX2 (M = Mo, W; X = S, Se) by angle-resolved photoemission spectroscopy", Nature/Scientific Reports 6, Article number: 36389 (2016), link to article:

2. Yan Chen et al., "Optoelectronic Properties of Few-layer MoS2 FET Gated by Ferroelectric Relaxor Polymer", ACS Appl. Mater. Interfaces, 2016, 8 (47), pp 32083-32088, link to article:


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