Semiconductors materials:

Content

Introduction. Semiconductors. Atomic structure and bonding. Crystalline, polycrystalline and amorphous materials. Unit cell parameter. Covalent bonding. Effect of crystal structure and bonding on electronic properties.

Formation of molecular wave-functions and energy bands. Examples of hydrogen molecule and silicon crystal. Valence and, conduction band, and bandgap. Metals, semiconductors and insulators.Fermi energy and its meaning.

Kronig-Penney model.E-k diagram. Energy band parameters.

Electron current. Effective mass. Electrons and holes. Generation and recombination. Direct and indirect bandgap semiconductors.

Doping. N-type and p-type. Density of states and Fermi function.

Carrier concentration. Degenerate semiconductors. Temperature dependence. Compensation doping.

Fermi energy invariance at equilibrium.Drift current. Mobility. Conductivity.

Diffusion current. Einstein relation.

Excess carriers. Generation and recombination. Quasi-Fermi levels.

Continuity and diffusion equations. Steady state carrier injection. Gradients in the quasi-Fermi levels.

Textbooks 

Semiconductor Physics and Devices: Basic Principles, Donald A.Neamen