1. Department of Chemistry, Damak Multiple Campus, Tribhuvan University, Damak 57217, Nepal
2. Himalaya Secondary School, Damak 57217, Nepal
3. Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, 04510 Ciudad de México, México
4. Department of Physics, Kathmandu University, Dhulikhel, Kavre 45200, Nepal
5. Central Department of Physics, Tribhuvan University, Kirtipur, 44613 Kathmandu, Nepal
6. Condensed Matter Physics Research Center, Butwal-11, Rupandehi 32907, Nepal
7. IFW Dresden, Helmholtzstr-20, 01069 Dresden, Germany
8. Department of Chemistry, Mahendra Morang Adarsh Multiple Campus, Tribhuvan University, Biratnagar 56613, Nepal