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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