1. Pusat Pengajian Sains Fizik, Universiti Sains Malaysia, 11800 USM Pulau Pinang, Malaysia
2. Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
3. Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Perak Campus, Jalan Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia
4. Department of Physics, B.L.D.E. Association's S.B. Arts and K.C.P. Science College, Vijayapura 586103, Karnataka, India
5. Department of Physics, K.L.E Institute of Technology, Opposite Airport, Gokul, Hubballi 580027, Karnataka, India
6. Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad 500046, India