1. Department of Chemistry, JNTUA, Anantapur, India;
2. Department of Physics, University College of Engineering, Osmania University, Hyderabad, India;
3. Department of Chemistry, RGM College of Engineering and Technology, Nandyal, India;
4. Department of Chemistry, JNTUP, Pulivendula, India;
5. Department of Mechanical Engineering, RGM College of Engineering and Technology, Nandyal, India;
6. Department of Chemistry, V.R. College, Nellore, India;
7. Centre for Composite Materials, International Research Center, Kalasalingam University, Krishnan Koil, India