Physics of semiconductors III - WPMSPSE7

Goal(s)

The objective of the course is to give students a general knowledge of semiconductor physics that goes beyond the material generally taught, namely silicon. The knowledge acquired during this course will be particularly useful to students who intend to study semiconductors currently studied in research laboratories such as semiconductors for energy (nitride or ZnO for lighting applications, large gaps such as SiC, GaN or diamond for power electronics or even compounds for the next generations of photovoltaic cells). This UE is also an opportunity to provide in-depth knowledge of electronic transport in semiconductors and the specificities generated by their composition (IV-IV, III-V, II-VI, symmetry, alloy, polar or not, etc.).

Content(s)

• Crystal structure of class IV-IV, III-V, and II-VI semiconductors, reciprocal lattice reviews.
• Band structure of different semiconductors and associated density of states.
• Fermi-Dirac distribution, population of delocalized and localized states.
• Hydrogenoid model, effective mass for shallow impurities.
• Neutrality equation and temperature dependence of carrier density.
• Effects of high doping: screening, ionization energy versus doping, hopping, metal-insulator transition.
• Phonons in class IV-IV, III-V, and II-VI semiconductors.
• Boltzmann transport equation, relaxation time.
• Diffusion processes in class IV-IV, III-V, and II-VI semiconductors: neutral and ionized impurities, polar and nonpolar phonons, interval and intravalley.
• Mobility in IV-IV, III-V, II-VI semiconductors.
• Heterostructure and high mobility field effect transistor.

Solid State Physics
Semiconductor Physics
Semiconductor Physics

Test

Semester 9 - The exam is given in english only 

2-hour writing

Additional Information

Semester 9 - This course is given in english only 

Bibliography

Physique des semiconducteurs et des composants électronique - Henry Mathieu - Dunod
Fundamentals of carrier transport - Mark Lundstrom - Cambridge university press
Physical foundations of solid-state devices - E.F. Schubert
Solid State Physics, Ashcroft and Mermin
Physics of semiconductor devices – S.M. Sze and NG. Kwok, WILEY