Review of Bulk semiconductor physics: crystals, compound semiconductors,
bandstructure, density of states, doping and carrier concentration, Fermi statistics
Optical properties of semiconductors: direct and indirect optical absorption,
excitons, free carrier absorption, refraction, Kramers?Kronig relation, spontaneous
and stimulated emission, Einstein coefficients. Overview of optical properties and
electronic structure of amorphous semiconductors , organic semiconductors.
Electronic transport in semiconductors: continuity equation, diffusion, drift,
PN junction: band diagram, thermal equilibrium, electrostatics and Poisson’s
equation, depletion approximation, forward and reverse biased diodes, breakdown,
tunneling, impact ionization, p?i?n diodes, silicon solar cell.
Heterostructures: lattice constants and bandgaps, band offsets and heterostructure
types, growth techniques, quantum wells, Optical properties of Quantum structures,
Schottky diode, heterojunction diodes, role of interfaces, current transport, photoconductors, Photodiodes, Light Emitting Diodes and Laser Diodes