Transition Metal Dichalcogenides (TMDs)

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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 MX 2 , 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. Jump to: Popular TMDs | Browse all TMDs | Resources and Support Popular TMDs Molybdenum Disulfide Molybdenum Disulfide (MoS 2 ) Browse our MoS 2 powders, single crystals, and films. Tungsten Disulfide Tungsten Disulfide (WS 2 ) One of the most studied 2D materials. Molybdenum Diselenide Molybdenum Diselenide (MoSe 2 ) Browse our MoSe 2 powders, single crystals, and films. Browse Transition Metal Dichalcogenides Related categories: low dimensional materials , 2D materials [[filterby group="function" tags="semiconductors, (semi)metals and superconductors"]][[filterby group="type" tags="metallic transition metal dichalcogenide, post-transition metal chalcogenides, transition metal dichalcogenide, transition metal dichalcogenide alloy"]][[filterby group="metal" tags="germanium, hafnium, molybdenum, niobium, rhenium, tantalum, tin, titanium, tungsten, vanadium, zirconium"]][[split]] Perform electrical and optical measurements with platinum FET test chips, optimized for 2D materials Resource