Tin Selenide (SnSe)-Pieces

Characteristic

 

Tin selenide, also known as stannous selenide, is an inorganic compound with the formula (SnSe), where Tin has a +2 oxidation state. Tin(II) selenide is a narrow band-gap (IV-VI) semiconductor and has received considerable interest for applications including low-cost photovoltaics and memory-switching devices.




Chemical formula：SnSe

Molar mass：197.67 g/mol

Appearance：steel gray odorless powder

Density：6.179 g/cm3

Melting point：861 °C (1,582 °F; 1,134 K)

Solubility in water：negligible

Band gap：0.9 eV (indirect), 1.3 eV (direct)

Crystal structure：Orthorhombic, oP8

 


Application

 

Tin selenide finds application in low- cost photovoltaics devices and memory-switching devices. It acts as a solid-state lubricant. It is also used for solar cells and anodes for lithium-ion batteries. Further, it is a narrow band-gap semiconductor.