1. School of Physical Sciences, Swami Ramanand Teerth Marathwada University, Nanded, MS, 431606-India
2. Department of Physics, Shivaji Mahavidyalaya, Udgir, Maharashtra 413517, India
3. Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia