1. Department of Physics, Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha, India
2. Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur, Odisha, India
3. Liquid Crystal Research Laboratory, School of Physics, Sambalpur University, Jyoti Vihar, Sambalpur, Odisha, India