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Abstract In this manuscript, we report on ZnO hexagonal patterns formation by electrochemical deposition on ZnO bifacial wafers. These hexagonal patterns are composed of perfectly aligned ZnO nanowalls and we… Click to show full abstract
Abstract In this manuscript, we report on ZnO hexagonal patterns formation by electrochemical deposition on ZnO bifacial wafers. These hexagonal patterns are composed of perfectly aligned ZnO nanowalls and we believe this phenomenon has been observed for the first time. In-between the nanowalls some ZnO nanowires are deposited. The SEM and high-resolution TEM analysis have shown that the nanowalls are composed of single ZnO nanowires. It has been established that the nanowalls formation is strongly dependent on the substrate polarity and the working electrode position towards the counter electrode, thus allowing their growth only on Zn-terminated face. We assume that the nanowalls are grown into the oxygen dislocations on Zn-terminated ZnO wafer.
Journal Title: Journal of Electroanalytical Chemistry
Year Published: 2019
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