Course

Unit I

Preparation and characterization of microelectronic devices (6 sessions)

Study of Zener diode, diode based half/full-wave rectifier, Metal-semiconductor Schottky diode fabrication, thin film field effect transistor, BJT transistor (BC 547) as amplifier and switch. Characterization of nanomaterials.

Unit II

Optical properties of materials and devices (4 sessions)

UV-VIS Spectroscopy, Optical reflectance/transmittance and luminescence. Opto-electronic properties of bulk and thin films, electrical and optical characterization of LEDs.

Unit III

Advanced semiconductors (3 sessions)

Nanomaterials size-structure-property correlation, 2D materials semiconductor processing and properties. Delayering commercial IC-chip to understand microstructure and reverse engineering.

Mini-project: based on the experiments executed

Unit IV

Standards in nanomaterials assessment and device testing (2 sessions)

Introduction to quality assessments, ISO, IEC standard testing.

Pre-requisites: Basic understanding of experimental research

Total number of lab sessions: 15

Course Outcomes:

• Students will be able to gain hands on experience in preparation and characterization of semiconductor nanomaterials.
• Practically correlate process parameters and property (electrical, optical…etc.)
• Fabricate devices and investigate their characteristics.
• Be able to learn operation of characterization tools and independently handle the instruments.
• A comprehensive experimental understanding of electrical and optical properties of semiconductors.

TEXTBOOKS/ REFERENCES:

1. S. M. Sze, “Physics of Semiconductor Devices”, Wiley-Interscience, 1969.
2. D. K. Schroder, “Semiconductor Material and Device Characterization”, 3^rd Edition, Wiley Publishers, 2006.

 24NE682 Nanomaterials Lab 0 0 4-2

Pre-requisites: Basic understanding of experimental research

Total number of lab sessions: 15

Course Outcomes:

• Understand the preparation of standard solutions in different concentration units: Molarity, Molality and Normality
• Understand the synthesis of metal nanoparticles.
• Learn synthesis of plasmonic silver nanoparticles and observe its color change with varying size & shape of nanoparticles.
• Understand the principle and working of UV -Vis absorption spectroscopy technique and relation of absorption peak of silver nanoparticles with size and shape changes.
• Understand the synthesis of nanoparticles in non-aqueous route and observe its luminescence under UV lamp to understand quantum confinement effect.
• Understand the synthesis of nanoparticles in aqueous route and study the fluorescence properties of nanoparticles using spectrofluorometer
• Understand the UV-VIS absorption properties of nanoparticles and estimation of particle size using Brus equation
• Understand the principles of Atomic Force Microscope (AFM) and hands on experience in use of AFM in nanoparticle size characterization
• Understand the principles of Scanning Electron Microscope (SEM) and its use in characterizing nanoparticles