硒化铋(III) Bismuth(III)Selenide 5g

CAS号：12068-69-8

品名：砷化铋BISMUTHSELENIDE

中文别名：硒化铋(III),真空沉积级;硒化铋(III);

英文别名：Bismuth(III)selenide;Bismuthselenide;

分子式：Bi2Se3

分子量：654.841

精确质量：657.71

Psa：0.0

EINECS号：235-104-7

MDL号：MFCD00014200

PubChem号：24864986

密度：6.82g/mLat 25°C(lit.)

熔点：710°C

安全说明：S20/21; S28; S45; S60; S61

危险类别码：R23/25

WGK Germany：3

危险品运输编码：UN 3283 6.1/PG 3

危险品标志：T; N

信号词：Danger

危险性防范说明：P261; P273; P301 + P310; P311; P501

危险标志：GHS06, GHS08, GHS09

危险性描述：H301 + H331; H373; H410

简介：Bismuthselenide(Bi2Se3)isagraypowderthatisacompoundofbismuthandseleniumalsoknownasbismuth(III)selenide.Itisasemiconductorandathermoelectricmaterial.Whileperfectstoichiometricbismuthselenideshouldbeasemiconductor(withagapof0.3eV)naturallyoccurringseleniumvacanciesactaselectrondonorsanditoftenactsasasemimetal.TopologicallyprotectedsurfacestateshavebeenobservedinBismuthselenidewhichisthesubjectofongoingscientificresearch.