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Photonics Dictionary

dichalcogenide

Dichalcogenides are a class of compounds composed of two atoms of a chalcogen element bonded to a single atom of a metal or metalloid element. Chalcogens are the elements in group 16 of the periodic table, which include oxygen, sulfur, selenium, tellurium, and polonium. Therefore, dichalcogenides commonly consist of two atoms from this group, such as sulfur-sulfur (S-S), selenium-selenium (Se-Se), or tellurium-tellurium (Te-Te) bonds, bonded to a metal or metalloid atom.

Dichalcogenides often exhibit interesting electronic, optical, and mechanical properties, making them of significant interest in various fields such as materials science, nanotechnology, and electronics. One prominent example is molybdenum disulfide (MoS2), which has gained attention for its potential applications in semiconductors, catalysis, and optoelectronic devices.
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