Free electron model, thermal properties, and transport properties. Crystal lattices, diffraction of radiation, and reciprocal lattice. Semiconductors: electronic properties, intrinsic/extrinsic calculations, and mass-action law. Laboratory exercises include X-ray diffraction, Hall effect, photoconductivity, and paramagnetic resonance experiments.
- Teacher: Βασίλειος Γιαννόπαπας
- Teacher: Αθανάσιος Κόντος
ECTS : 5
Language : el
Learning Outcomes : Understand the concept of a crystalline system and the basic parameters that define it.
Describe the symmetry properties that characterize a crystalline solid in both real and reciprocal space.
Construct the first Brillouin zone of basic crystal systems.
Select and use the appropriate equations for the mathematical description of a crystalline-body model.
Solve the theoretical equations, identifying the boundary conditions in each case, in order to calculate the energy spectrum and the density of states for the electronic system.
Calculate the branches of acoustic and optical lattice vibrations in one dimension within certain models, and understand the significance of the corresponding dispersion relations for three-dimensional lattices.
Understand the concept of the constant-energy (isoenergetic) surface in reciprocal space and the effective-mass approximation.
Use the density of states and the appropriate statistics to calculate the carrier concentration in an intrinsic semiconductor.
Combine the neutrality condition of a semiconductor with the mass-action law to determine the Fermi level in intrinsic and extrinsic semiconductors.
Calculate the potential of a p–n junction and the characteristics of the corresponding depletion region.