M. Maria Lumina Sonia1, S. Anand1, V. Maria Vinosel1, M. Asisi Janifer1, S. Pauline1, A. Manikandan2
1Department of Physics, Loyola College (Autonomous), Chennai 600034, India
2Department of Chemistry, Bharath Institute of Higher Education and Research (BIHER), Bharath University, Chennai, 600 073, Tamil Nadu, India