Bandgap tuning of Mn-doped BiFeO3 thin films for photovoltaic application Chokalingam Saravanan, P. Balaji Bhargav, N. Venkateswaran, Nafis Ahmed, K. Aravinth and Chandra Balaji Eur. Phys. J. Appl. Phys., 98 (2023) 54 Published online: 14 August 2023 DOI: 10.1051/epjap/2023230094