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二硫化铪
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二硫化铪

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HfS2 (Hafnium Disulfide)

HfS2 Hafnium DisulfideHfS2 is a semiconductor with an indirect band gap of ~2 eV. Single layer Hafnium Disulfide is predicted to have a direct band gap of ~1.2 eV. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. HfS2 belongs to the group-IV transition metal dichalcogenides (TMDC). To buy HfS2 crystals please click here.

The Hafnium Disulfide crystals produced at HQ Graphene have a lateral size of ~0.6-0.8 cm, are hexagonal shaped and have a red transparent appearance. A selection of peer review publications on the HfS2 we sell can be found below.


HfS2 publications

HfS2 crystal properties

Crystal size~10 mm
Electrical propertiesSemiconductor
Crystal structureHexagonal
Unit cell parametersa = b = 0.363 nm, c = 0.586 nm, α = β = 90°, γ = 120°
TypeSynthetic
Purity>99.995 %
Characterized byXRD, Raman, EDX
More information?13381379835


HfS2 Pricing

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The single crystal HfS2 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: 785nm Raman system

Raman, XRD and EDX on HfS2:

Click on an image to zoom


X-ray diffraction on a HfS2 single crystal aligned along the (001) plane. XRD was performed at room temperature using a D8 Venture Bruker. The 4 XRD peaks correspond, from left to right, to (00l) with l = 1, 2, 3, 4

Powder X-ray diffraction (XRD) of a single crystal HfS2. X-ray diffraction was performed at room temperature using a D8 Venture Bruker.

Stoichiometric analysis of a single crystal HfS2 by Energy-dispersive X-ray spectroscopy (EDX).

Raman spectrum of a single crystal HfS2. Measurement was performed with a 785 nm Raman system at room temperature.


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