The Influence of the Growth Time on the Size and Alignment of Zno Nanorods

Authors

  • Ahmed F. Abdulrahman University of Zakho
  • Sabah M. Ahmed University of Duhok
  • Naser M. Ahmed Universiti Sains Malaysia

DOI:

https://doi.org/10.25271/2017.5.1.313

Keywords:

Nanorods, CBD, Growth time, ZnO, Semiconductor

Abstract

Vertically aligned ZnO nanorods arrays were synthesized on glass substrates. ZnO seed layers were prepared on the glass substrate by RF Sputtering technique. ZnO nanorods synthesized using low-cost chemical bath deposition method at low temperature (95 ºC). The effect of the different growth time such as (0.5, 1, 2, 3, 4 and 5) h on the morphology, elemental chemical composition and structure of the ZnO nanorods were obtained systemically, and tested by Field emission scanning electron microscopy (FESEM), Energy dispersive analysis (EDX), and XRD measurements. The results found that the ZnO nanorods with hexagonal wurtzite structure grow vertically on the glass substrates. Most of the prepared samples have strong and sharp (002) peak intensities and the diffraction peaks (002) become higher and narrower as growth time increasing, obtaining that the ZnO crystalline quality became better with growth time increasing. The growth rate was decreased with increasing growth time, and the high aspect ratio was found at 4 h as a growth time. The size, length and crystalline size of the ZnO nanorods increase with increasing growth time. Furthermore, the ZnO nanorods vertically grow at (002) direction along the c-axis on the glass substrate, with elementary chemical compositions of zinc and oxygen only for all prepared samples.

Author Biographies

Ahmed F. Abdulrahman, University of Zakho

Dept. of Physics, Faculty of Science, University of Zakho, Kurdistan Region, Iraq

Sabah M. Ahmed, University of Duhok

Dept. of Physics, Faculty of Science, University of Duhok, Kurdistan Region, Iraq

Naser M. Ahmed, Universiti Sains Malaysia

School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia

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Published

2017-03-30

How to Cite

Abdulrahman, A. F., Ahmed, S. M., & Ahmed, N. M. (2017). The Influence of the Growth Time on the Size and Alignment of Zno Nanorods. Science Journal of University of Zakho, 5(1), 128–135. https://doi.org/10.25271/2017.5.1.313

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Science Journal of University of Zakho

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