1. Department of Physics, S.S. Duraisamy Nadar Mariammal College, Kovilpatti, Tamil Nadu, India
2. Department of Physics, Annamalai University, Tamil Nadu, India
3. Department of Physics, St. Joseph’s College of Engineering, Chennai, Tamil Nadu, India
4. Department of Chemistry, St. Joseph’s College of Engineering, Chennai, Tamil Nadu, India
5. School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China