Selenium exists in several allotropic forms, although three are generally recognized. Selenium can be prepared with either an amorphous or a crystalline structure. The color of amorphous selenium is either red (in powder form) or black (in vitreous form). Crystalline monoclinic selenium is a deep red; crystalline hexagonal selenium, the most stable variety, is a metallic gray.
Melting point: 220.5 °C Boiling point: 685 °C
A sputtering target is a disc of a high purity material used as an atomic sputtering source for ion beam bombardment. Please contact us if your required sputtertarget size and/ or purity are not listed.