Molybdenum Ditelluride Powder


500 mg

Not in stock (price excludes taxes)
Order Code: M2109C1
MSDS sheet

Pricing

Product Code Quantity Price
M2109C1 500 mg £168.5
M2109C1 1 g £269.3

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.

 

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

  1. Exfoliated multilayer MoTe2 field-effect transistors, S. Fathipour et al., Appl. Phys. Lett. 105, 192101 (2014); doi: 10.1063/1.4901527.
  2. 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.
  3. 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.
  4. 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.
  5. 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.