**1st module**

**Dott. Lorenzo Pavesi**

**A.A. 1998/9**9

During this teaching unit particular attention will be paid to photonic

applications, thus the standard concepts will be shortly commented
while

more emphasis will be placed on the description of quantum confinement
in

nanometric structures.

Those arguments in common with the Solid State Physics unit will be
only

brifly comments. It is suggested that the student pass the Structure
of the

Matter examination before attending this teaching unit.

**PROGRAMME**

1. Introduction

Various semiconductor types. Band structure. Equilibrium carrier

distribution. Doping. Main defects. Epitazial and bul growth techniques.

2. Transport

Electrical mobility. p/n junctions. Modulation doped heterostrucutres.

Quantum Hall effect.

3. Optical properties.

Dielectric function. Phonons. Excitons. Radiative and non-radiative

transitions. Experimental techniques.

4. Quantum confinement effects on electronic states.

Quantum wells and superlattices. Electronic and optical properties.
One and

zero-dimensional structures. Fabrication and characterization techniques.

Applications.

5. Semiconductor laser.

Light emitting diodes. Basic on laser effect. Heterostructure laser.

Quantum well laser. Introduction to the photonics.

**SUGGESTED READINGS**

P. Bhattacharya, Semiconductor Optoelectronic Devices, Prentice-Hall

Peter Yu and M. Cardona, Fundamentals of Semiconductors, Springer-Verlag

(Berlino 1996)

S. M. Sze, Physics of Semiconductor Devices, John Wiley & Sons
(New York 1981)

C. Weisbuch and B. Vinter, Quantum Semiconductor Structures, Academic

Press (Boston 1991)