chalcogeniden

Chalcogenides are chemical compounds derived from the chalcogen group of elements, which includes oxygen, sulfur, selenium, tellurium, and polonium. These elements are found in Group 16 of the periodic table. Chalcogenides can be formed with a wide variety of other elements, including metals, nonmetals, and metalloids. The most common chalcogenides involve sulfur, selenium, and tellurium.

In solid-state chemistry, the term chalcogenide is often used to refer to binary compounds of a chalcogen with a more electropositive element, such as metal chalcogenides. These materials exhibit a diverse range of properties, making them useful in various applications. For instance, metal sulfides are found naturally as minerals, like pyrite (iron sulfide). Metal selenides and tellurides are less common but also have industrial relevance.

Chalcogenide glasses are amorphous solids that contain at least one chalcogen element. They are known for their unique optical and electrical properties, particularly their transparency in the infrared spectrum. These properties make them suitable for applications in infrared optics, such as lenses and windows, as well as in infrared detectors and optical fibers. The specific properties of a chalcogenide glass depend on its composition, with different combinations of chalcogens and other elements leading to varied characteristics. Research continues to explore new compositions and applications for these versatile materials.