1. Thin Film and Nanoscience Laboratory, Department of Physics, Tripura University, Suryamaninagar 799022, Tripura, India
2. Department of Basic Science & Humanities, Techno College of Engineering Agartala, Maheshkhola 799004, West Tripura, Tripura, India
3. Department of Chemistry, Tripura University, Suryamaninagar 799022, Tripura, India