Mechanism of hydrothermal growth of ZnO nanoflowers and nanoblades

Authors

Ian Harvey J. Arellano ⋅ PH Institute of Chemistry and Materials Science and Engineering Program, University of the Philippines Diliman
Denis Aquino ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman
Leon M. Payawan, Jr. ⋅ PH Institute of Chemistry, University of the Philippines Diliman

Abstract

The mechanism for the hydrothermal growth of ZnO nanoflowers and nanoblades is presented. ZnO nanoflowers and nanoblades were grown on a copper strip using zinc acetate dihydrate and ethanolamine as precursors at 65°C. Scanning Electron Microscopy was employed to deduce the mechanism of growth as a function of substrate’s exposure time to the reaction mixture. The growth was found to be nucleation driven and the presence of a seed structure promotes the formation of a nanoflower. Nanoblades grow due to the supersaturation of ZnO on the substrate surface. Overexposure of the substrate leads to masking of the ordered nanostructure due to extensive deposition leading to film formation on the surface.

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Issue

2006: Proceedings of the 24th Samahang Pisika ng Pilipinas National Physics Congress

Article ID

SPP-2006-2D-03

Section

Materials Science

Published

2006-10-25

How to Cite

[1]

IHJ Arellano, D Aquino, RV Sarmago, and LM Payawan, Mechanism of hydrothermal growth of ZnO nanoflowers and nanoblades, Proceedings of the Samahang Pisika ng Pilipinas 24, SPP-2006-2D-03 (2006). URL: https://proceedings.spp-online.org/article/view/SPP-2006-2D-03.