PHYSICS RESEARCH CENTRE

Major specializations

Nano materials

Crystal growth and characterization

NLO Studies

Biophysics

Nonlinear dynamics

Nano materials:

In the last decade, the development of nano size materials of metals and metal oxide particles are intensively pursued because of their prominence in different fields of applications. The most effectively studied nano particles today are those made from noble metals like silver, gold, platinum, zinc sulphide and copper. There are various techniques like sputtering, laser ablation, cluster deposition, sol-gel method, etc., to prepare nano crystals. After synthesis the nanomaterials are characterized with UV-visible spectroscopy, X-ray diffraction technique, Fourier Transforms Infrared Spectrometry, Scanning Electron Microscopy, Atomic Force Microscopy etc. Copper oxide nano particles used for the applications of storage devices are prepared using sol-gel method and characterization done by XRD to find the size and purity of nanoparticles.

Crystal growth:

Crystal growth is the fundamental phenomenon for the production of industrial materials including semiconductors, metallic alloys, intermetallic compounds, oxide materials, and so on. Usually bulk crystalline materials are grown from a melt; therefore, to understand the crystal growth mechanisms at a crystal/melt interface is significant. Our research targets understanding of fundamental crystal growth mechanisms and development of crystal growth technology for obtaining high-quality materials. L-Valine is an amino acid which is admixed with Zinc chloride, copper chloride and cadmium chloride in order to harvest new semi organic NLO crystals. The characterization properties of these newly grown crystals were studied.

One of the most important subjects of our group is to solve the energy problem in the world through researches on the crystal growth. We have developed an in situ observation system consisting of a furnace and a microscope for observing a crystal/melt interface of materials with high melting temperatures. Especially, we have been focusing on observations of low temperature solution growth techniques. Based on those fundamental studies of crystal growth mechanisms, we have developed a crystal growth technology for obtaining high-quality multi crystalline for photo voltaic sensing applications.