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化合物简介
Bismuth selenide (Bi2Se3) is a gray powder that is a compound of bismuth and selenium also known as bismuth(III) selenide. It is a semiconductor and a thermoelectric material. While perfect stoichiometric bismuth selenide should be a semiconductor (with a gap of 0.3 eV) naturally occurring selenium vacancies act as electron donors and it often acts as a semimetal. Topologically protected surface states have been observed in Bismuth selenide which is the subject of ongoing scientific research.
基本信息
CAS：12068-69-8
中文别名：硒化铋(III),真空沉积级;硒化铋(III);
英文别名：Bismuth(III) selenide;Bismuth selenide;
分子式：Bi2Se3
分子量：654.841
精确质量：657.71
Psa：0.0
Logp：-0.9174
中文别名：硒化铋(III),真空沉积级;硒化铋(III);
英文别名：Bismuth(III) selenide;Bismuth selenide;
分子式：Bi2Se3
分子量：654.841
精确质量：657.71
Psa：0.0
Logp：-0.9174
编号系统
PubChem号：24864986
MDL号：MFCD00014200
EINECS号：235-104-7
MDL号：MFCD00014200
EINECS号：235-104-7
物化性质
密度：6.82g/mLat 25°C(lit.)
熔点：710°C
熔点：710°C
安全信息
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
危险性描述：H301 + H331; H373; H410
危险性防范说明：P261; P273; P301 + P310; P311; P501
危险标志：GHS06, GHS08, GHS09
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
危险性描述：H301 + H331; H373; H410
危险性防范说明：P261; P273; P301 + P310; P311; P501
危险标志：GHS06, GHS08, GHS09