Editing Cadmium arsenide (section)

== Preparation ==
[[File:Cadmium arsenide growth.png|thumb|250px|Schematic of the vapor growth of Cd<sub>3</sub>As<sub>2</sub> crystals using an alumina furnace.<ref name=nat/>]]
Cadmium arsenide can be prepared as [[amorphous]] semiconductive [[glass]]. According to Hiscocks and Elliot,<ref name=doi1073/> the preparation of cadmium arsenide was made from cadmium metal, which had a purity of 6 N from Kock-Light Laboratories Limited. Hoboken supplied β-arsenic with a purity of 99.999%. Stoichiometric proportions of the elements cadmium and arsenic were heated together. Separation was difficult and lengthy due to the [[ingot]]s sticking to the silica and breaking. Liquid encapsulated Stockbarger growth was created. Crystals are pulled from volatile melts in liquid encapsulation. The melt is covered by a layer of inert liquid, usually B<sub>2</sub>O<sub>3</sub>, and an inert gas pressure greater than the equilibrium vapor pressure is applied. This eliminates the evaporation from the melt which allows seeding and pulling to occur through the B<sub>2</sub>O<sub>3</sub> layer.