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