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Physics of Nanomaterials

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ABOUT THE COURSE:With the growing need for miniaturization, it is imperative to understand how the properties of materials and devices change when size confinement is introduced. Due to the constraint motion of electrons in nanomaterials, electrical and optical properties change significantly. Particle size reduction can also introduce phase transitions in materials, leading to modulated thermal, mechanical and chemical properties. Therefore, a new range of applications can be envisaged by using novel nanomaterials. This course will be useful for UG and PG level students with interest in the field of nanotechnology and its applications in real world.INTENDED AUDIENCE:B Tech: Engineering Physics, Materials Science, Metallurgy and Materials Engineering, NanotechnologyBS-MS: PhysicsM Tech: Physics, Nanotechnology, Materials Science Industry professionals working in the area of materials science.PREREQUISITES: Physics – IINDUSTRY SUPPORT: Applied Materials, Tata Chemicals, Gujrat Fluorochemicals, Loba Chemicals, Aldrich Chemicals

Syllabus

Week 1:

1) Introduction to Nanomaterials and Nanotechnology
2) Classification of Nanomaterials
3) Need for Nanomaterials
4) Some Useful Applications of Nanomaterials

Week 2:

5) Concept and Quantum Mechanical Explanation of Electron Confinement
6) Energy Band Diagram in Solid State Materials
7) Crystal Structures and Phase Transitions in Nanomaterials
8) Dimensionality Effects on the Electrical behavior of nano-sized conductors, semiconductors, insulators and dielectrics

Week 3:

9) Introduction to Synthesis Methods for Nanomaterials
10) Kinetically and Thermodynamically Controlled Routes
11) Top Down and Bottom Up Synthesis Routes
12) Lithography, Ball-milling, Chemical Routes

Week 4:

13) Low Dimensional Structures – Quantum Wells, Wires and Dots
14) Conduction Electrons and Dimensionality
15) Fermi Gas and Density of States
16) Coulomb Potential and Single Electron Tunneling

Week 5:

17) Metal Nanoclusters
18) Semiconducting Nanoparticles
19) Molecular Clusters
20) Quantum Devices - Infrared Detectors and Quantum Dot Lasers

Week 6:

21) Carbon Nanostructures
22) Carbon Clusters and Nanotubes
23) Electrical, Vibrational and Mechanical Properties of Carbon Nanostructures
24) Applications of Carbon Nanotubes

Week 7:

25) Magnetism at Nanoscale
26) Nanostructured Ferromagnetism
27) Dynamics of Nanomagnets
28) Nanopore Containment of Magnetic Particles

Week 8:

29) Giant Magnetoresistance
30) Colossal Magnetoresistance
31) Nanocarbon Ferromagnets
32) Ferrofluids and Superparamagnetism

Week 9:

33) Self Assembly and Catalysis
34) Process of Self Assembly and Semiconductor Islands
35) Monolayers and Porous Materials
36) Nature of Catalysis, Pillard Clays and Colloids

Week 10:

37) Nanomaterials for Energy Devices
38) Secondary Batteries
39) Supercapacitors
40) Porous Silicon, Photoluminescence and Photovoltaics

Week 11:

41) Methods to Determine Properties of Nanomaterials
42) Particle Size Determination
43) Surface Structure Determination
44) Porosity and Specific Surface Areas

Week 12:

45) TEM and SEM
46) Infrared and Raman Spectroscopy
47) Phase Transition Using X-ray Diffraction
48) Strain Estimation

Taught by

Prof. Amreesh Chandra

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