List of Articles Band gap energy Open Access Article Abstract Page Full-Text 1 - Structural, Morphological and Optical Analysis of TiO2 Thin Films Prepared by RF Magnetron Sputtering Mohsen Vaezzadeh asadi Ghahraman Solookinejad Heydar Izadneshan 10.30495/jopn.2021.28681.1230 20.1001.1.24237361.2021.6.4.4.2 Open Access Article Abstract Page Full-Text 2 - Calculation of the energy levels of graphene Nano-discs using the semi-empirical tight-binding method Masoumeh Khodagholi Bahram Bahrami Zeynab Kiamehr https://doi.org/10.71577/jopn.2025.1208072