Semiconductor materials and lasers

Know the fundamental principles of semiconductor materials.
Have an overview of the possible applications of this type of material in optics (light-emitting diodes, photovoltaic cells, LASER diodes, etc.).
Know the basics of LASER.

Basic notions of atomistics (atomic and molecular orbitals, etc.)

I- Reminders of wave mechanics
I-1. Atomic orbitals - Electronic configuration
I-2. Molecular orbitals
I-3. Energy band theory
II- Semiconductor materials
II-1. General information on semiconductors
II.2 Conduction mechanism in semiconductors
II-3. Fermi level
II-4. Densities of states, electron and hole densities
II-5. Intrinsic semiconductors
II-6. Extrinsic semiconductors - Doping
II-7. Organic semiconductors
III- The PN junction
III-1. Equilibrium PN junction
III-2. Reverse-biased PN junction
III-3. Forward-biased PN junction
IV- Applications of the PN junction in optoelectronics
IV-1. Light-emitting diodes

Inorganic LEDs
OLEDs

IV-2. Photovoltaic cells
IV-3. Photodetectors
V- LASER
V-1. LASER principle
V-2. LASERS with 3 or 4 levels
V-3. Characteristics of laser light
V-4. Laser types
V-5. LASER diodes

Physics