New Engineering Materials: Semiconductors, Superconductors & Nanomaterials

This topic introduces three classes of advanced engineering materials: semiconductors (Group IV elements, carriers, band gap, P-type/N-type doping, P-N junction and Zener diodes), superconductors (zero resistance, Meissn…

• Semiconductors lie between conductors and insulators in conductivity.
• Group IV elements (Si, Ge) have four valence electrons and form covalent crystal lattices.
• Carriers in semiconductors are electrons (negative) and holes (positive).

Full explanation, worked examples & memory tricks in the app