1. Department of Physics, National Chung Hsing University, Taichung 402, Taiwan
2. Nanomaterials and Sensors Research Laboratory, Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow-226025, UP, India
3. Department of Physics, Lal Bahadur Shastri Smarak Post Graduate College, Maharajganj-273161, UP, India
4. Department of Physics, Pondicherry University, Puducherry, India
5. School of Energy Management, Shri Mata Vaishno Devi University, Katra-182320, Jammu & Kashmir, India
6. Department of Physics, Dr Shakuntala Misra National Rehabilitation University, Lucknow-226017, UP, India