Keyword Analysis & Research: chalcogenide
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Chalcogenide - Wikipedia
https://en.wikipedia.org/wiki/Chalcogenide
WebA chalcogenide is a chemical compound consisting of at least one chalcogen anion and at least one more electropositive element. Although all group 16 elements of the periodic table are defined as chalcogens, the term chalcogenide is more commonly reserved for sulfides, selenides, tellurides, and polonides, rather than oxides.
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Chalcogenide glass - Wikipedia
https://en.wikipedia.org/wiki/Chalcogenide_glass
WebChalcogenide glass (pronounced hard ch as in chemistry) is a glass containing one or more chalcogens (sulfur, selenium and tellurium, but excluding oxygen). Up until recently, chalcogenide glasses (ChGs) were believed to be predominantly covalently bonded materials and classified as covalent network solids .
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Chalcogen - Wikipedia
https://en.wikipedia.org/wiki/Chalcogen
WebAlthough all group 16 elements of the periodic table, including oxygen, can be defined as chalcogens, oxygen and oxides are usually distinguished from chalcogens and chalcogenides. The term chalcogenide is more commonly reserved for sulfides, selenides, and tellurides, rather than for oxides.
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Chalcogenides - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/materials-science/chalcogenides
Web1.1 Introduction. Chalcogenides (compounds and alloys of sulfur, selenium and tellurium) display an uncommon array of physical phenomena that range from interesting electronic [1,2], thermal [3], and optical properties [4,5] to novel forms of …
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Chalcogenide photonics | Nature Photonics
https://www.nature.com/articles/nphoton.2011.309
WebFeb 28, 2011 · Chalcogenide glasses (ChGs) are an important class of amorphous semiconductors used in phase-change memories, solar cells, sensors and photonics.
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Turning on the glass: Chalcogenides and the future of photonics
https://spie.org/news/photonics-focus/julyaug-2022/seeing-the-future-of-photonics-with-chalcogenides
WebJul 1, 2022 · A nonvolatile, electrically programmable photonic switch with GST thin film, a type of chalcogenide glass well known as a phase-change material. Photo credit: Rui Chen. Today, chalcogenide glass is set to transform laser switching in optical systems.
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4.5: Chalcogens and Chalcogenides - Chemistry LibreTexts
https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Inorganic_Chemistry_(Saito)/04%3A_Chemistry_of_Nonmetallic_Elements/4.05%3A_Chalcogens_and_Chalcogenides
WebAs a result of having much smaller electronegativities than oxygen, they show decreased ionicity and increased bond covalency, resulting in a smaller degree of hydrogen bonding. Because they have available d orbitals, chalcogens have increased flexibility of valence and can easily bond to more than two other atoms.
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1 - Introduction and fundamentals of chalcogenides and
https://www.sciencedirect.com/science/article/pii/B9780128204986000019
WebJan 1, 2021 · A chalcogenide is a chemical compound consisting of at least one chalcogen anion (S 2-, Se 2-, and Te 2-) and at least one electropositive element. Many metal ores exist as chalcogenides, which are commonly known as sulfides, selenides, and tellurides.
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Iron pnictides and chalcogenides: a new paradigm for ... - Nature
https://www.nature.com/articles/s41586-021-04073-2
WebJan 5, 2022 · Yin, Z. P., Haule, K. & Kotliar, G. Fractional power-law behavior and its origin in iron-chalcogenide and ruthenate superconductors: insights from first-principles calculations.
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The promise of chalcogenides | Nature Photonics
https://www.nature.com/articles/nphoton.2011.155
WebNature Photonics - Chalcogenide glasses are attracting significant attention thanks to their mid-infrared transparency and highly nonlinear properties. Nadya Anscombe talks to Dan Hewak from...
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