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Transition Metal Dichalcogenides (TMDs)


Transition metal dichalcogenides (TMDs) are a class of compounds composed of a transition metal (such as molybdenum or tungsten) and a chalcogen element (like sulfur, selenium, or tellurium). These compounds typically have the chemical formula MX2, where M represents the transition metal and X is the chalcogen. TMDs are known for their layered structures, similar to graphite, with strong in-plane bonding and weak out-of-plane interactions, allowing layers to be easily separated.

2D TMDs properties include the ability to change electronic characteristics from indirect to direct bandgap when thinned down to a single layer, which is critical for applications in photonics and valleytronics. They exhibit a range of electronic properties from metallic to semiconducting, making them highly interesting for various applications in electronics and optoelectronics. They are particularly noted for their potential in the development of novel devices such as transistors, sensors, and solar cells.

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Molybdenum Disulfide (MoS2) Collection

Molybdenum Disulfide

Molybdenum Disulfide (MoS2)

Browse our MoS2 powders, single crystals, and films.

Tungsten Disulfide (WS2) Collection

Tungsten Disulfide

Tungsten Disulfide (WS2)

One of the most studied 2D materials.

Molybdenum Diselenide (MoSe2) Collection

Molybdenum Diselenide

Molybdenum Diselenide (MoSe2)

Browse our MoSe2 powders, single crystals, and films.

Browse Transition Metal Dichalcogenides


Related categories: low dimensional materials, 2D materials

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Perform electrical and optical measurements with platinum FET test chips, optimized for 2D materials

Resources and Support


Introduction to 2D Materials Introduction to 2D Materials

The foundation of technology is the understanding of material systems. Specific material properties are required depending on the application.

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Viscoelastic Transfer of 2D Material Using PDMS 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.

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Molybdenum Disulfide Molybdenum Disulfide (MoS2): Theory & Applications

Molybdenum disulfide belongs to a class of materials called 'transition metal dichalcogenides'. Materials in this class have the chemical formula MX2, where M is a transition metal atom and X is a chalcogen.

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Tungsten Disulfide Properties Tungsten Disulfide Properties

Tungsten disulfide (WS2) exits in different forms, each with their own beneficial properties. Bulk WS2 offers advantages such as exceptional lubricity and high thermal stability.

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