Pricing
| Product Code | Quantity | Price |
| M2109C1 | 500 mg | £169.00 |
| M2109C1 | 1 g | £269.00 |
General Information
| CAS number | 12058-20-7 |
| Chemical formula | MoTe2 |
| Molecular weight | 351.14 g/mol |
| Bandgap | 1.0 - 1.13 eV [1] |
| Classification / Family | Transition metal dichalcogenides (TMDCs), 2D semiconductor Materials, NIR band-gap, Nano-electronics, Nano-photonics, Transistors, Photovoltaics, Materials science |
Product Details
| Form | Powder |
| Preparation | Synthetic - Chemical Vapour Transport (CVT) |
| Purity | ≥ 99.995% |
| Structure | Hexagonal, 2H phase |
| Electronic properties | 2D semiconductor |
| Melting point | Decomposes |
| Colour | Metallic black |
General Description
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.
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.
Molybdenum ditelluride (MoTe2) powder product image and single-layer structure.
Applications
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.
Synthesis
Prepared by CVT, MoTe2 powder with purities in excess of 99.995% has been achieved.
Usage
Molybdenum ditelluride powder can be used with liquid chemical exfoliation to prepare MoTe2 nanosheets and nanoparticles down to few-layer films. MoTe2 powder has a purity in excess of 99.995%, and can be used with CVD deposition to create high quality mono-layer and few-layer films. These are of direct interest in electronic and photoluminescence studies.
Literature and Reviews
- Exfoliated multilayer MoTe2 field-effect transistors, S. Fathipour et al., Appl. Phys. Lett. 105, 192101 (2014); doi: 10.1063/1.4901527.
- 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.
To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.
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