Description
Summary:Band- Model (Heitler-London), Linear Combination of Atomic Orbitals, valence and conduction bands, energy gap, Fermi energy level. Insulators, conductors, semiconductors. Intrinsic semiconductors (definition, photoconductivity, uses). Extrinsic (doped) semiconductors (p- and n- type, p-n junction). Nonstoichiometric oxides as p- and n- type semiconductors (examples, uses).