ML3015 Semiconductors and Optoelectronic Materials and Devices Syllabus:
ML3015 Semiconductors and Optoelectronic Materials and Devices Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
The main learning objective of this course is to prepare the students for:
1. Gaining knowledge on semiconductor materials, mechanisms and processing techniques
2. Understanding the concepts and working principles of optoelectronic devices
3. Getting acquainted with the basics of semiconductor understanding of fundamentals of optoelectronics
4. Acquiring knowledge on the Quantum effects and relevant properties due to their effect
5. Comparing the different processing techniques
6. Designing suitable optoelectronic devices for any given application
UNIT I BASICS OF SEMICONDUCTORS
Energy bands and Charge carriers in Semiconductors: Direct and Indirect semiconductors, Density of states, Occupation probability, Fermi level and quasi Fermi levels, p-n junctions, Schottky junction and Ohmic contacts.
UNIT II FUNDAMENTS OF OPTOELECTRONICS
Elements Of Light – Wave nature of light, Polarization, Interference, Diffraction, Light Source. Excess carriers in Semiconductors: optical absorption; photo, electro and cathode – luminescence. Relevence of III-V and IV-VI material-system in optoelectronic devices. Lasers – Laser Emission, Absorption, Radiation, Population Inversion, Optical Feedback, Threshold condition, Laser Modes, Classes of Lasers.
UNIT III QUANTUM EFFECT
Quantum confinement, Engineering classifications of nanostructures (1D, 2D, 3D confinement) -nano particles- quantum dots, nanowires-ultra-thin films ultilayered materials. Length Scales involved and effect on properties: Mechanical, Electronic, optical, Magnetic and Thermal properties. Semiconducting Hetrostructures.
UNIT IV ADVANCED PROCESSING TECHNIQUES
Optoelectronic materials fabrication – Mechanical Milling, Colloidal routes, Self-assembly, CVD, MOCVD, Sputtering, Molecular Beam Epitaxy, Atomic Layer Epitaxy, MOMBE and Lithography. Processing Environment – clean room technology: specifications and design, air and water purity, requirements for particular processes.
UNIT V MODERN OPTOELECTRONIC DEVICES
Optoelectronic Integrated Circuits: Introduction, hybrid and Monolithic Integration, Application of Opto Electronic Integrated Circuits, Integrated transmitters and Receivers, Guided wave devices. Quantum dot, quantum well lasers, LED, Photovoltaic, Photo-transisters, opto-electronic switches.
TOTAL: 45 PERIODS
COURSE OUTCOMES:
Upon Completion of the Course, the students will be able to
1. Relate the impacts of semiconductor material properties and the optical properties of semiconductor devices.
2. Discuss the fundamental properties of optoelectronic devices
3. Explain the quantum effect and the length scales of materials
4. Describe the various advanced processing techniques adopted for fabrication of optoelectronic materials.
5. Identify suitable material for any given application.
TEXT BOOKS:
1. Jasprit Singh, “Opto Electronics – As Introduction to materials and devices”, McGraw-Hill International Edition, 1998.
2. Pallab Bhattacharya “Semiconductor Opto Electronic Devices”, Prentice Hall of India Pvt., Ltd., New Delhi, 2006.
REFERENCES:
1. B. E. A. Saleh and M. C. Teich, “Fundamentals of Photonics”, John Wiley, 2nd ed. 2007.
2. Timp. G, “Nanotechnology”, AIP press/Springer, 1999.