Experimental study demonstrates peak photoelectrochemical performance in zinc oxide nanorods at 30 minutes of growth, indicating optimal morphological control via microwave deposition.
In this study, zinc oxide (ZnO) nanostructures were grown on a ZnO seed layer/fluorine-doped tin oxide (FTO) substrate for different growth durations ranging from 5 to 40 min using the microwave chemical bath deposition method. We studied the effect of growth duration on the morphological, structural, optical and photoelectrochemical properties of the ZnO nanostructures. From this study, we found that the photoelectrochemical properties of the ZnO nanostructures were largely affected by their morphological and structural properties. As a result, we obtained the highest photocurrent density of 0.46 mA/cm 2 (at 1.5 V vs. SCE) from the sample grown for 30 min.
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Oh et al. (2017) studied this question.
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