1. Thin Film Materials Laboratory, Department of Physics, Shivaji University, Kolhapur- 416 004, India
2. Department of Physics, Krishna Mahavidyalaya, Rethare Bk, India
3. Department of Physics, Karmaveer Hire Arts, Science, Commerce and Education College, Gargoti 416-009, India
4. Department of Physics, Institute of Chemical Technology, Mumbai-400019, India
5. Department of Materials Science and Engineering, Chonnam National University, Gwangju 500-757, South Korea