1. Centre for Nano and Material Sciences, JAIN (Deemed-to-be) University, Kanakapura, Ramanagara, Bangalore 562112, Karnataka, India
2. Department of Physics, SRM University – AP, Amaravati 522502, Andhra Pradesh, India
3. Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea