ABSTRACT

Chemical bath deposition (CBD) was utilised to synthesise zinc oxide (ZnO) nanorods (NRs)/glass substrate arrays. On these ZnO NRs, layers of cadmium sulphide (CdS) nanoparticles (NPs) were produced using the CBD technique. The NRs in the samples grow with a highly directed (002) c-axis orientation, giving them a hexagonal tip form. CdS NPs enhance the ZnO NRs’ optical absorption. According to the results, we found that the grain size decreased from 86.69 nm for ZnO to 56.62 nm after adding a layer of CdS, which may be due to the effect of the small nano-size of the CdS NPs. FE-scanning electron microscopy (SEM) examinations show that ZnO has a NR shape with an average diameter of 129 nm and a smooth surface, whereas CdS NPs/ZnO NRs have a spherical shape with an average diameter of 61 nm. The results show that the CBD method-fabricated ZnO NRs/CdS NPs provide a simple approach to nanoscale optoelectronic devices.

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