Molybdenum Disulfide (MoS2) Powder

Molybdenum disulfide (MoS₂) possesses a sizeable intrinsic band-gap. It takes the form of a layered structure, in which crystalline planes are bound together by relatively weak Van der Waals forces. Its unique chemical, mechanical, and electronic properties make it widely used as a lubricant and a photocatalytic material.

High Purity

High purity ≥99.995% MoS2 Powder

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Low Cost Molybdenum Disulfide

Applications

Applications in thermoelectric-devices, sensors, LEDs, OPVs, and energy storage devices.

As a 2D semiconducting material, MoS₂ undergoes transformation from an indirect semiconductor in its bulk form (band-gap 1.2 eV) to a direct band-gap semiconductor (band-gap 1.9 eV) in its monolayer form. This makes MoS₂ an ideal candidate in the fields of physics, chemistry, biochemistry, and electronic engineering. Advanced applications are also emerging in FETs, energy storage, gas sensors, and many other electronic and photo-electronic devices.

MoS₂ quantum dots have strong quantum confinement and edge effects. Thus, their direct-bandgap properties find applications in hydrogen evolution reactions (HER), photocatalytic hydrogen evolution, bioimaging and electrochemical lithium storage.

Chemical Structure of Molybdenum Disulfide Powder

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Applications of Molybdenum Disulfide Powder

MoS₂ powder is used for applications in thermoelectric-devices, sensors, LEDs, OPVs, and energy storage devices.

Synthesis

MoS₂ powder is obtained via the CVT method, with purity typically in excess of 99.995%.

Usage

Molybdenum disulfide MoS₂ powder is generally used to prepare MoS₂ quantum dots solutions and nano-plateletes by liquid exfoliation assisted by sonication. High-purity MoS₂ powder can also be used in CV deposition to prepare high quality mono-layer films.

Further information

More information on the properties, applications, processing and range of products available for molybdenum disulfide (MoS₂) is described on our MoS2 information page.

Literature and Reviews

• Few-Layer MoS2: A Promising Layered Semiconductor, R. Ganatra et al., ACS Nano, 8 (5), 4074–4099 (2014); DOI: 10.1021/nn405938z.
• Molybdenum disulfide quantum dots: synthesis and applications, N. Arul et al., RSC Adv., 6, 65670 (2016); DOI: 10.1039/c6ra09060e.
• Preparation of Monolayer MoS2 Quantum Dots using Temporally Shaped Femtosecond Laser Ablation of Bulk MoS2 Targets in Water, B. Li et al., Sci. Rep., 7: 11182 (2017); DOI:10.1038/s41598-017-10632-3.
• One-Step Synthesis of Water-Soluble MoS2 Quantum Dots via a Hydrothermal Method as a Fluorescent Probe for Hyaluronidase Detection, W. Gu et al., ACS Appl. Mater. Interfaces 8, 11272−11279 (2016); DOI: 10.1021/acsami.6b01166.
• MoS2 Quantum Dot-Interspersed Exfoliated MoS2 Nanosheets, D. Gopalakrishnan et al., ACS Nano, 8 (5), 5297–5303 (2014); DOI: 10.1021/nn501479e.
• Quantum confinement effects across two-dimensional planes in MoS2 quantum dots, Z. Gan et al., Appl. Phys. Lett. 106, 233113 (2015); doi: 10.1063/1.4922551