UNIT I INTRODUCTION Nanoscale Science and Technology-Implications for Physics, Chemistry, Biology and Engineering-Classifications of nanostructured materials-nano particles-quantum dots, nanowires-ultra-thin films-multilayered materials. Length Scales involved and effect on properties : Mechanical, Electronic, Optical, Magnetic and Thermal properties. Introduction to properties and motivation for study (qualitative only). (Chapter - 1) UNIT II GENERAL METHODS OF PREPARATION Bottom-up Synthesis-Top-down Approach : Co-Precipitation, Ultrasonication, Mechanical Milling, Colloidal routes, Self-assembly, Vapour phase deposition, MOCVD, Sputtering, Evaporation, Molecular Beam Epitaxy, Atomic Layer Epitaxy, MOMBE. (Chapter - 2) UNIT III NANOMATERIALS Nanoforms of Carbon-Buckminster fullerene-graphene and carbon nanotube, Single wall carbon Nanotubes (SWCNT) and Multi wall carbon nanotubes (MWCNT)-methods of synthesis(arc-growth, laser ablation, CVD routes, Plasma CVD), structure-property Relationships applications-Nanometal oxides-ZnO, TiO2,MgO, ZrO2, NiO, nanoalumina, CaO, AgTiO2, Ferrites, Nanoclays-functionalization and applications-Quantum wires, Quantum dots-preparation, properties and applications. (Chapter - 3) UNIT IV CHARACTERIZATION TECHNIQUES X-ray diffraction technique, Scanning Electron Microscopy-environmental techniques, Transmission Electron Microscopy including high-resolution imaging, Surface Analysis techniques- AFM, SPM, STM, SNOM, ESCA, SIMS-Nanoindentation. (Chapter - 4) UNIT V APPLICATIONS NanoInfoTech : Information storage-nanocomputer, molecular switch, super chip, nanocrystal, Nanobiotechnology : nanoprobes in medical diagnostics and biotechnology, Nano medicines, Targetted drug delivery, Bioimaging - Micro Electro Mechanical Systems (MEMS), Nano Electro Mechanical Systems (NEMS)-Nanosensors, nano crystalline silver for bacterial inhibition, Nanoparticles for sunbarrier products-In Photostat, printing, solar cell, battery. (Chapter - 5)
