Silicon by inflammation and scarring in the form of nodular lesions in the upper lobes of the lungs. Silicon Silicon is a chemical element with symbol Si and atomic number 14. It is a hard and brittle crystalline solid with a blue-grey metallic lustre; and it is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, and lead are below it. It is relatively unreactive. Because of its large chemical affinity for oxygen, it was not until 1823 that Jöns Jakob Berzelius was first able to prepare
Antimony telluride It can be transformed into both "n"-type and "p"-type semiconductors by doping with an appropriate dopant. SbTe forms the pseudobinary intermetallic system germanium-antimony-tellurium with germanium telluride, GeTe. Like bismuth telluride, BiTe, antimony telluride has a large thermoelectric effect and is therefore used in solid state refrigerators. Antimony telluride Antimony telluride is an inorganic compound with the chemical formula SbTe. It is a grey crystalline solid with layered structure. Layers consist of two atomic sheets of antimony and three atomic sheets of tellurium and are held together by weak van der Waals forces. SbTe is a narrow-gap semiconductor with a band