Introduction to semiconductor devices and theory, energy bands, carriers, carrier transport, homojunctions, heterojunctions, charge, pn junctions, biasing, equilibrium, transient behaviour, MOS devices, bipolar devices, disordered semiconductors, thin-film devices, organic semiconductors, solar cells, and sensors. [Offered: S] Prereq: NE 125, 241; 2B Nanotechnology Engineering students only. Coreq: NE 232