Figure 6
From: Femtosecond-laser-irradiation-induced structural organization and crystallinity of Bi2WO6

(a) Photoluminescence spectra of BWO and i-BWO excited at 355 nm. (b) Schematic representation of the PL emission related to the presence of the intermediate levels between the conduction band and the valence band. (obtained by OriginPro v.9 software - https://www.originlab.com/Origin).