The talk will be based on synthesis and applications of nanostructures in various areas like energy, photonics, and biology. With the tools available to fabricate devices from top down approach, it is utmost desire to develop techniques, which mimic nature, i.e., assemble atoms and molecules in a manner that these can be used for applications. A lot of effort is being carried out to control the growth of matter at nanoscale. The talk will cover fundamentals of self-assembly and then use of nanostructures/nanoparticles in a variety of devices.
Nanotechnology is the design, fabrication, and application of nanostructures or nanoparticles, and the fundamental understanding of the relationships between physical properties or phenomena and material dimensions. Nanotechnology is a new field or a new scientific domain, dealing with materials or structures in nanometer scales, typically ranging from sub-nanometers to several hundred nanometers. Nanotechnology also promises the possibility of giving non-conventional properties. Yet another very important aspect of nanotechnology is the miniaturization of current and new instruments, sensors, and machines that will greatly impact the world we live in.
The development of Nanotechnology has enabled the possibilities to fabricate devices and structures at nanoscale (on the order of few nm). The properties of such nanostructures cannot be described by macroscopic physical models like drift-diffusion equations. And that is where the fundamental constants of nature (e.g. charge of an electron, Planck’s constant, spin of an electron, etc) come into play. The purpose of this seminar is to describe how these fundamental constants can be connected with the transport phenomenon at nanoscale and how we can come up with a formalism that can describe the transport phenomenon in these nanostructures in terms of the atomistic theory of matter.
Since the fabrication of transistor and IC’s, nanotechnology is bringing yet another revolution in science and technology. This revolution bridges over different disciplines such as chemistry, physics and biology. The present talk is divided into two parts: the first one will present an overview of nanotechnology and the second part will include a discussion of the growth of nano crystals/structures using Buffer Layer Assisted technique.
This seminar will introduce the basics of nanotechnology. Along with the fundamentals, it will overview current research trends and the underlying problems in nanotechnology. Focus will be on ceramic nano-particles, such as their synthesis routes (including thermal hydrolysis, hydrothermal processes and solid state reaction). Some applications of nano-ceramics will also be mentioned.