21PHY333 INTRODUCTION TO NANOPHYSICS AND APPLICATIONS-
UNIT I-
Introduction: relation of nano to other sciences – chemistry, biology, astronomy, geology, nano in nature.
UNIT II-
Properties of nano-materials: size effect, particle’s size, shape, and density, melting point, surface tension, gettability, surface area and pore, composite structure, crystal structure, surface characteristics; mechanical, electrical, properties, and optical properties.
UNIT III-
Synthesis of nanoparticles: Classification of fabrication methods – top-to-bottom and bottom-to-top approaches, physical and chemical methods of preparation: CVD, controlled precipitation, sol-gel method, PLD etc; Confinement of particles – low dimensional structures – quantum wells, wires and dots.
UNIT IV-
Characterization of nanoparticles: X-Ray diffraction, examples of XRD, Debye-Scherzer formula; FTIR: principle, methodologies and accessories; SEM: basics and primary mode of operation, applications; TEM: basic principles; STM: basic principles and instrumentation; AFM: basics, modes of operation and applications; Photoluminescence: basic principles.
UNIT V-
Application of nanophysics: Carbon nanostructures: Fullerenes, CNTs and their applications; MEMS and NEMS devices; Quantum Cascade Lasers, Smart materials, GMR and Spintronic, multifarious.
REFERENCES:
- Charles P Poole Jr. & Frank J Owens, Introduction to Nanotechnology, 1E, Wiley, 2007
- W.R Fawner (Ed.), Nanotechnology and Nano electronics, Springer, 2006
- M Hosokawa, et al, Nanoparticle Technology Handbook, Elsevier Publishers, 2007
- S.V. Gaponenko, P.L Knight & A. Miller, Optical Properties of Semiconductor Nanocrystals, CUP, 1E, 2005
- T Pradeep, Nano: The Essentials, TMH, 1E, 2007