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About: Antimony triselenide     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : umbel-rc:ChemicalSubstanceType, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceChemical compoundyago:WikicatAntimonyCompoundsyago:Abstraction100002137yago:Cognition100023271yago:Compound105870180yago:Concept105835747yago:Content105809192yago:Idea105833840yago:PsychologicalFeature100023100chemical compoundyago:Whole105869584umbel-rc:ChemicalSubstanceType New Facet based on Instances of this Class

Antimony triselenide is the chemical compound with the formula Sb2Se3. The material exists as the sulfosalt mineral antimonselite (IMA symbol: Atm), which crystallizes in an orthorhombic space group. In this compound, antimony has a formal oxidation state +3 and selenium −2. The bonding in this compound has covalent character as evidenced by the black color and semiconducting properties of this and related materials. The low-frequency dielectric constant (ε0) has been measured to be 133 along the c axis of the crystal at room temperature, which is unusually large. Its band gap is 1.18 eV at room temperature.