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Influence of Heat Treatments on the Properties of ZnO Nanorods Prepared by Hydrothermal Synthesis

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Abstract

ZnO nanorods were grown on bare or SiO2-coated Si wafers by the hydrothermal method. The ZnO nanorods were annealed at 200, 400, and 600°C, respectively. The structural, optical, and electrical property variation of the ZnO nanorods with the annealing temperature was investigated by X-ray diffraction, field-emission scanning electron microscopy, photoluminescence, and current–voltage measurements. For the ZnO nanorods, compressive strain was detected, which decreased with annealing. Moreover, annealing at 600°C led to nanorod agglomeration. The ZnO nanorods annealed at 400°C exhibited the highest crystallinity.

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  1. Department of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology, 44919, Ulsan, Korea

    Hyunggun Ma

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Hyunggun Ma Influence of Heat Treatments on the Properties of ZnO Nanorods Prepared by Hydrothermal Synthesis. Semiconductors 53, 1811–1816 (2019). https://doi.org/10.1134/S106378261913013X

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  • DOI: https://doi.org/10.1134/S106378261913013X

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