Structural and Optical Properties of Core–Shell TiO2/CdS Prepared by Chemical Bath Deposition

What is it about?

Titanium dioxide (TiO2) nanorod arrays (NRAs) sensitized with cadmium sulfide (CdS) nanoparticles (NPs) were deposited by chemical bath deposition (CBD). TiO2 NRAs were also obtained by using the same method on glass substrates coated with fluorine-doped tin oxide (FTO). The structure of the FTO/TiO2/CdS core–shell was characterized by x-ray diffraction (XRD), atomic force microscopy, scanning electron microscopy, ultraviolet–visible (UV–Vis) absorption spectroscopy, photoluminescence, and photoelectrocatalysis of FTO/TiO2 and FTO/TiO2/CdS. The FTO/TiO2 conformed to anatase and rutile phase structures for different pH values and also with annealing.

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Why is it important?

This approach offers a technique for fabricating photoelectrodes. Key words: TiO2/CdS core–shell, CBD, XRD, SEM, AFM