## Physics of Solid State Devices

##### Course details

Reference to fundamentals of solid state physics. Drude model. Density of states and electron statistic electrons in periodic structures. semiconductors effective mass. Intrinsic carrier concentration. Doping and extrinsic carriers. Scattering and carrier mobility carrier transport by drift (velocity-field relation) and by diffusion. Einstein‘s relation. Break-down, impact ionization, tunneling. Optical processes. Quasi-Fermi levels. Carrier generation and recombination (radiative and nonradiative). Deep traps (Shockley-Read-Hall). Continuity equation drift and diffusion currents. Equilibrium at p-n junction. Diode polarization. Real diode. Eterojunctions. Diode time response. Metal-semiconductor junction, Schottky diode, ohmic contacts. Insulators and semiconductors. Interconnection. Resistors. Sheet resistence. Conceptual picture of bipolar devices. I-V characteristic of BJT. High frequency/high speed. Field effect devices. Current-voltage characteristics high frequency/high speed MOS capacitor. Current-voltage characteristics real devices. CMOS Inverter. Charge Coupled Device (CCD). Introduction to optoelectronic devices. Absorption and emission by carrier pairs. p-n junction as photoconductive and photovoltaics devices. Light emitting diode and diode laser. Optical gain in a diode laser. Light propagation at the interface between two dielectrics. Fresnel coefficients. Principles of guided optics waveguides (planar and channel). Propagation modes Light insertion in waveguides.

##### Objectives

LEARNING OUTCOMES:

The quantization of the electromagnetic field. Quantum states of electromagnetic radiation

Description and demonstration (also by means of some experimental simulations) of the coherence properties of the first and second order of various light sources. The quantization of the electromagnetic field. Quantum states of electromagnetic radiation.

KNOWLEDGE AND UNDERSTANDING:

Acquisition of the general principles and of the phenomenology of electromagnetic radiation.

Understanding of the interaction of matter radiation within the semiclassical and quantum theory. Understanding pecularities of quantum radiation states compared to classical states.

APPLYING KNOWLEDGE AND UNDERSTANDING:

Knowing how to connect the microscopic and macroscopic vision of absorption (the optical constants). Preparation and interpretation of simple experiments and the limits of applicability of the studied theory.

COMMUNICATION SKILLS:

Description and discussion of laboratory experiments and experimental conditions in relation to the acquired knowledge.