Department of Physics, Panjab University, Chandigarh, India

TPSC seminar

Time and date: 8 September 2011 (Thursday), 4:00 PM
Venue: Seminar Hall

Title: Synthesis and engineering of nanocomposites and nanostructures by energetic ions

Speaker: Dr. D.K. Avasthi, Inter University Accelerator Centre, New Delhi

Abstract: Energetic ions, depending on their mass and energy, have different roles in synthesis and engineering of the nanostructures. The unique features of ion beams can be utilized in (i) synthesis of nanostructures (ii) engineering the size and shape of the nanostructures and (iii) tuning the surface plasmon resonance in noble metal nanocomposite thin films. Interesting results have been obtained in synthesis of metal-silica nanocomposites, ripples at surface and engineering the size and shape of particles embedded in silica matrix. I will brief some results on the synthesis of noble metal nanoparticles embedded in different matrices, and their characterization. Simulation of growth process of embedded nanostructures will be discussed. Our recent efforts on application of nanoparticles in biology will be briefed.