1. Department of Applied Sciences, I K Gujral Punjab Technical University, Kapurthala, India
2. PG Department of Physics and Electronics, DAV College, Amritsar, India
3. Department of Physical Sciences, I K Gujral Punjab Technical University, Amritsar, India
4. Energy Centre, MANIT, Bhopal, India
5. Department of Mechanical Engineering, MANIT, Bhopal, India