Name: Molybdenum Ditelluride (MoTe2) Powder and Crystal
SKU: 287621

Product Details ＋

Low price, high purity 2D molybdenum ditelluride (MoTe₂) powder and crystals

Suitable for the creation of single or few-layer sheets via mechanical or liquid exfoliation

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Molybdenum Ditelluride MoTe₂ (α-MoTe₂), CAS number 12058-20-7, is a semiconductor with an indirect band gap of around 1.0 eV in bulk crystal or powder form, and a direct band-gap of about 1.1 eV in monolayer films. MoTe₂ has a characteristic layered structure direct band-gap that extends to near infrared (NIR) wavelengths. Combined with the advantages of wet chemical exfoliation, MoTe₂has great potential for electronics - especially in photovoltaic technologies.

High Purity

≥99.999% Molybdenum Ditelluride

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Low Cost

Low Cost Molybdenum Disulfide

Powder & Crystal

Powder & Crystal forms of MoTe2

Single or few-layer MoTe₂ nanosheets can be created via liquid exfoliation under ambient conditions. Exfoliated nanosheets can be be fabricated into layered films and deposited onto a range of different substrates. MoTe₂ nanosheets can be used in high-performance sodium-ion batteries, as a electrocatalyst in hydrogen evolution reactions (HER), and in photovoltaic solar cells.

MoTe₂is also semi-metallic, with bulk MoTe₂exhibiting superconductivity at a transition temperature of 0.10 K.

We supply low price molybdenum ditelluride in several different forms for a range of applications.

Molybdenum Ditelluride Powder

Can be used for preparation of molybdenum ditelluride nanoplates and ultrathin films

Available in quantities 500 mg of 1 g

≥99.995% purity

From [[price gbp="220"]]

Molybdenum Ditelluride Crystals by Size

Can be used to produce single or few-layer molybdenum ditelluride sheets via mechanical or liquid exfoliation

Small (≥10 mm²) or medium (≥25 mm²) crystals available*

≥99.999% purity

From [[price gbp="460"]]

*Typical representative size, areas/dimensions may vary

Bulk single Molybdenum ditelluride crystal is most commonly used as sources from which single or few-layer sheets can be obtained via either mechanical or liquid exfoliation. Single molybdenum ditelluride crystal or films produced from such crystals are suitable for study using atomic force microscopy or transmission electron microscopy

Few-layer MoTe₂ nanosheets and nanoparticles can also obtained from molybdenum ditelluride powder by liquid-exfoliation using sodium cholate salt as surfactant.

Technical Data

CAS Number	12058-20-7
Chemical Formula	MoTe₂
Molecular Weight	351.14 g/mol
Bandgap	0.81 - 1.13 eV
Preparation	Synthetic - Chemical Vapour Transport (CVT)
Structure	1T'
Electronic Properties	2D Semiconductor, type II Weyl semimetal
Melting Point	Decomposes
Colour	Metallic Black
Synonyms	Molybdenum telluride, Molybdenum(IV) telluride
Classification / Family	Transition metal dichalcogenides (TMDCs), 2D semiconductor materials, Nano-electronics, Nano-photonics, Electrochemical energy storage systems, Topological superconductors, Materials science

Product Details

Form	Purity
Powder	≥99.995%
Crystal	≥99.999%

Pricing Table

Product Code	Form	Size/Weight*	Price
M2109C1	Powder	500 mg	[[price gbp="220"]]
M2109C1	Powder	1 g	[[price gbp="350"]]
M2109A10	Crystal	Small (≥10 mm²)	[[price gbp="460"]] ea.
M2109A25	Crystal	Medium (≥25 mm²)	[[price gbp="760"]] ea.
M2109A00	Crystal	Large** (≥100 mm²)	[[price gbp="1750"]] ea.

*Typical representative size, areas/dimensions may vary

**Item with a lead time of 4 - 6 weeks, please for more information

MSDS Documents

Structure of Molybdenum Ditelluride

Molybdenum Ditelluride MoTe₂ (α-MoTe₂) is a semiconductor with an indirect band gap of around 1.0 eV in bulk crystal or powder form, and a direct band-gap of about 1.1 eV in monolayer films. Like and other 2D materials, MoTe₂ has a layered structure. It is composed of hexagonal sheets of molybdenum atoms - these are located between two hexagonal planes of tellurium atoms. Individual sheets are held together by weak Van der Waals forces, and are stacked with 2H symmetry.

The crystal structure of single-layer molybdenum ditelluride (MoTe₂)

Properties of Molybdenum Ditelluride

After exfoliation of Molybdenum ditelluride crystal or powder, Molybdenum ditelluride typically has the following properties:

Hexagonal 2H-MoTe₂(space group: P63/mmc)
2H-MoTe₂ (α-MoTe₂) is a semiconductor with an indirect band gap of around 1.0 eV in bulk crystal or powder form
Orthorhombic (Td) MoTe2 is a type II Weyl semimetal
Bulk MoTe₂exhibiting superconductivity at a transition temperature of 0.10 K.

Applications of Molybdenum Ditelluride

Molybdenum ditelluride single crystal can be used to prepare monolayer and few-layer MoTe₂ by mechanical or liquid exfoliation, and Molybdenum ditelluride powder is suitable for liquid chemical exfoliation to prepare MoTe₂ nanosheets and nanoparticles down to few-layer films.

With a relatively small band gap (1.1 eV) compared to other group VI TMDCs, single or few-layer MoTe₂ is a promising candidate in a range of applications, including ambipolar transistors. Due to its low band-gap, it is also of interest in optoelectronic technologies that span the visible to near-infrared range.

Molybdenum ditelluride (MoTe₂) single crystals can be used to prepare monolayer and few-layer MoTe₂ by mechanical or liquid exfoliation.

Molybdenum ditelluride powder is suitable for liquid chemical exfoliation to prepare MoTe₂ nanosheets and nanoparticles down to few-layer films. Bulk MoTe₂ exhibits superconductivity with a transition temperature of 0.10 K however potassium intercalated molybdenum ditelluride becomes superconducting below 2.8 K.

Monolayer or few-layer 2D MoTe₂has a direct band-gap and finds applications in transistors, and photovoltaics. MoTe₂ nanosheets prepared by chemical exfoliation have a band-gap at near-infrared (NIR) wavelengths. Thus, they are of direct interest in photo-detector devices.

MoTe₂ nanosheets can be used in high-performance sodium-ion batteries, as a electrocatalyst in hydrogen evolution reactions (HER), and in photovoltaic solar cells.

Literature and Reviews

Exfoliated multilayer MoTe2 field-effect transistors, S. Fathipour et al., Appl. Phys. Lett. 105, 192101 (2014); doi: 10.1063/1.4901527.
Optical Properties and Band Gap of Single- and Few-Layer MoTe2
Crystals, C. Ruppert et al., Nano Lett., 14, 6231−6236 (2014); DIO: 10.1021/nl502557g.
Two-dimensional MoTe2 materials: From synthesis, identification, and charge transport to electronics applications, Y. Chang et al, Jpn. J. Appl. Phys. 55 1102A1 (2016); DIO: 10.7567/JJAP.55.1102A1.

Unified Description of the Optical Phonon Modes in N‑Layer MoTe2, G. Froehlicher et al., Nano Lett., 15, 6481−6489 (2015); DOI: 10.1021/acs.nanolett.5b02683.
Fast MoTe2 Waveguide Photodetector with High Sensitivity at Telecommunication Wavelengths, P. Ma et al., ACS Photonics, 5, 1846−1852 (2018); DOI: 10.1021/acsphotonics.8b00068.
Superconductivity in Weyl semimetal candidate MoTe2, Y. Qi et al., Nat. Commun., 7:11038 (2016); DOI: 10.1038/ncomms11038.
Temperature dependent Raman spectroscopic study of mono-, bi-, and tri-layer molybdenum ditelluride, J. Park et al., Appl. Phys. Lett. 107, 153106 (2015); doi: 10.1063/1.4934181.
Room Temperature Semiconductor-Metal Transition of MoTe2 Thin Films Engineered by Strain, S. Song et al, Nano Lett., 16, 188-193 (2016); DOI: 10.1021/acs.nanolett.5b03481.
Large-Area Synthesis of High-Quality Uniform Few-Layer MoTe2, L. Zhou et al., J. Am. Chem. Soc., 137, 11892-11895 (2015); DOI: 10.1021/jacs.5b07452.
Nonlinear Saturable Absorption of Liquid-Exfoliated Molybdenum/Tungsten Ditelluride Nanosheets, D. Mao et al., Small, 12 (11), 1489–1497 (2016); DOI: 10.1002/smll.201503348.

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Resources and Support

Viscoelastic Transfer of 2D Material Using PDMS

Viscoelastic transfer using polydimethylsiloxane (PDMS) stamps is one of the methods used for the deterministic placement of 2D materials and the fabrication of van der Waals heterostructures. It relies on the viscoelasticity of PDMS, which behaves as an elastic solid on short time scales, but as a viscous fluid on long time scales.