Developing Conductive Highly Ordered Zinc Oxide Nanorods by Acetylacetonate-Assisted Growth

Materials
Siti Shafura A KarimMohd Ambri Mohamed

Abstract

Highly ordered vertically grown zinc oxide nanorods (ZnO NRs) were synthesized on ZnO-coated SiO2/Si substrate using zinc acetylacetonate hydrate as a precursor via a simple hydrothermal method at 85 °C. We used 0.05 M of ZnO solution to facilitate the growth of ZnO NRs and the immersion time was varied from 0.5 to 4 h. The atomic force microscopy revealed the surface roughness of ZnO seed layer used to grow the ZnO NRs. The morphology of vertically grown ZnO NRs was observed by field emission scanning electron microscopy. X-ray diffraction examination and transmission electron microscopy confirmed that the structure of highly ordered ZnO NRs was crystalline with a strong (002) peak corresponded to ZnO hexagonal wurtzite structure. The growth of highly ordered ZnO NRs was favorable due to the continuous supply of Zn2+ ions and chelating agents properties obtained from the acetylacetonate-derived precursor during the synthesis. Two-point probe current-voltage measurement and UV-vis spectroscopy of the ZnO NRs indicated a resistivity and optical bandgap value of 0.44 Ω.cm and 3.35 eV, respectively. The photoluminescence spectrum showed a broad peak centered at 623 nm in the visible region corresponded to the oxygen vacancies from...Continue Reading

References

Mar 30, 2010·Journal of Colloid and Interface Science·Gabriela AmbrozicZorica Crnjak Orel
Jun 30, 2011·Nanoscale Research Letters·Mi-Hee Jung, Hyoyoung Lee
Jan 13, 2009·Science and Technology of Advanced Materials·Sunandan Baruah, Joydeep Dutta
Apr 5, 2017·Physica. E, Low-dimensional Systems & Nanostructures·Shaker A BidierM Bououdina
Sep 15, 2018·Scientific Reports·Nur Syafinaz RidhuanZainovia Lockman
Nov 24, 2018·Nano Convergence·Nirmalya Tripathy, Deok-Ho Kim

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Citations

Dec 4, 2020·International Journal of Molecular Sciences·Yuchao LiSie Chin Tjong

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Methods Mentioned

BETA
biosensors
biosensor
atomic force microscopy
scanning
transmission electron microscopy
X-ray
AFM
electron diffraction
biosensing

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