Investigation of optical properties of molybdenum trioxide (MoO3) thin films using neural networks R. A. Mohamed, M. M. El-Nahass, M. Y. El-Bakry, El-Sayed A. El-Dahshan, E. H. Aamer and D. M. Habashy Eur. Phys. J. Plus, 139 5 (2024) 378 Published online: 03 May 2024 DOI: 10.1140/epjp/s13360-024-05134-x