1. Advanced Functional Material Laboratory, Department of Nanotechnology; Sri Guru Granth Sahib World University; Fatehgarh Sahib- 140 406 Punjab, India
2. Department of Basic and Applied Sciences; Punjabi University; Patiala- 147 002 Punjab, India.
3. Department of Electrical Engineering; Incheon National University, South Korea-; 406 772
4. Department of Mathematics; Punjabi University; Patiala- 147 002 Punjab, India