fig6
Figure 6. (A) UV–Vis diffuse reflectance spectra of BS, ZIS and BZIS heterojunctions; (B) PL spectra, (C) transient photocurrent response and (D) tr-PL spectra of ZIS and BZIS-1/20; Spin-trapping EPR spectra recorded for (E) ·O2- and (F) ·OH under illumination for BS, ZIS and BZIS-1/20. UV–Vis: Ultraviolet–visible; BS: Bi2S3; ZIS: ZnIn2S4; BZIS: Bi2S3/ZnIn2S4; PL: photoluminescence; tr-PL: time-resolved photoluminescence; EPR: electron paramagnetic resonance.
