Self-seeded electrochemical growth of ZnO nanorods using textured glass/Al-doped ZnO substrates
(2014) Applied Surface Science — Vol. 313, p. 607-614 (2014)
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- tIn this work, large and dense arrays of zinc oxide (ZnO) nanorods (NRs) were fabricated by an improvedtemplate-free electrodeposition (ECD) route on top of home-made Al-doped ZnO (AZO) thin filmsdeposited on glass. The AZO layer, acting as transparent conducting oxide, was found to display enhancedelectrical and morphological properties compared to other commercially available substrates, facilitat-ing the subsequent electrochemical growth of the ZnO nanostructures. In addition, its intrinsic columnarnature strengthened the vertical orientation of the obtained ZnO NRs. The one-step low-temperatureelectrochemical method did not require any additional seeding layer, being suitable for applications inwhich the process simplicity and substrate’s thermal toughness are essential requirements. The ECDprotocol was optimized as a function of the process temperature and duration, demonstrating the pos-sibility to yield reasonable aspect-ratio ZnO NRs in a relatively short time synthesis. Further structuralstudies confirmed the excellent orientation along c-axis of the ZnO Wurtzite phase and have shown apolycrystalline nature of the NRs, with a well-defined hexagonal symmetry of the crystallites.
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Antohe, V., Mickan, M., Henry, F., Delamare, R., Gence, L., & Piraux, L. (2014). Self-seeded electrochemical growth of ZnO nanorods using textured glass/Al-doped ZnO substrates. Applied Surface Science, 313, 607-614. https://doi.org/10.1016/j.apsusc.2014.06.031 (Original work published 2014)