The morphology and electrooptical properties of ZnO nanorods synthesized on monoethanolamine-based seed layer and KOHbased seed layer were compared. The seed solutions were prepared in monoethanolamine in 2-methoxyethanol and potassium hydroxide in methanol, respectively. Zinc acetate dihydrate was as a common precursor in both solutions. The nanorod-ZnOs were synthesized via the spin coating of two different seed solutions on silicon substrates followed by their hydrothermal growth. The scanning electron microscopy (SEM), X-ray diffraction (XRD), photoluminescence (PL), and Raman studies revealed that the ZnO nanorods obtained from monoethanolamine-based seed layer had fewer defects, better crystals, and better alignment than those realized via KOH-based seed layer. However, the current-voltage (I-V) characteristics demonstrated better conductivity of the ZnO nanorods obtained via KOH-based seed layer. The current measured in forward bias was 4 mA and 40 f/A for ZnOnanorods grown on KOH-based seed layer and monoethanolamine-based with the turn on voltage of approximately 1.5 V and 2.5 V, respectively, showing the feasibility of using both structures in optoelectric devices. Copyright © 2012 M. Kashif et al.
CITATION STYLE
Kashif, M., Hashim, U., Ali, M. E., Usman Ali, S. M., Rusop, M., Ibupoto, Z. H., & Willander, M. (2012). Effect of different seed solutions on the morphology and electrooptical properties of ZnO Nanorods. Journal of Nanomaterials, 2012. https://doi.org/10.1155/2012/452407
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