Fig. 5From: Stepwise Synthesis of Au@CdS-CdS Nanoflowers and Their Enhanced Photocatalytic Propertiesa The PL spectra of Au colloids, Au@CdS thick, Au@CdS-CdS, and CdS counterparts, respectively. b Comparison of transient photocurrent response of the Au@CdS-CdS nanoflowers, Au@CdS thick, and CdS counterparts irradiated with visible light of λ ≥ 400 nm in 0.2 M Na2SO4 aqueous solution without bias versus Ag/AgClBack to article page