Affiliation: | 1.Department of Physics,Velammal Institute of Technology,Chennai,India;2.Department of Physics,Rajeswari Vedachalam Government Arts College,Chengalpet,India;3.Department of Physics,AMET University,Chennai,India;4.Bio/Polymers Research Laboratory, Department of Chemistry,Jamia Millia Islamia,New Delhi,India;5.Department of Chemical and Biological Engineering,University of Saskatchewan,Saskatoon,Canada |