Fig. 3
From: Synthesis and Study of Optical Characteristics of Ti0.91O2/CdS Hybrid Sphere Structures
a PL spectra of hollow Ti0.91O2/CdS (black) and solid Ti0.91O2/CdS (red) samples excited at 266 nm. b PL decay curves of hollow Ti0.91O2/CdS (black) and solid Ti0.91O2/CdS (red) samples with the 266 nm excitation. c PL spectra of hollow Ti0.91O2/CdS (black) and solid Ti0.91O2/CdS (red) samples excited at 400 nm. d PL decay curves of hollow Ti0.91O2/CdS (black) and solid Ti0.91O2/CdS (red) samples with the 400 nm excitation