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Open AccessArticle

Decoration of ZnO Nanorods with Coral Reefs like NiO Nanostructures by the Hydrothermal Growth Method and Their Luminescence Study

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Physical Electronics and Nanotechnology Division, Department of Science and Technology (ITN) Campus Norrköping, Linköping University, Norrköping SE-60174, Sweden
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Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping SE-58183, Sweden
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Author to whom correspondence should be addressed.
Materials 2014, 7(1), 430-440; https://doi.org/10.3390/ma7010430
Received: 10 November 2013 / Revised: 8 January 2014 / Accepted: 9 January 2014 / Published: 15 January 2014
(This article belongs to the Section Advanced Composites)
Composite nanostructures of coral reefs like p-type NiO/n-type ZnO were synthesized on fluorine-doped tin oxide glass substrates by hydrothermal growth. Structural characterization was performed by field emission scanning electron microscopy, high-resolution transmission electron microscopy, and X-ray diffraction techniques. This investigation shows that the adopted synthesis leads to high crystalline quality nanostructures. The morphological study shows that the coral reefs like nanostructures are densely packed on the ZnO nanorods. Cathodoluminescence (CL) spectra for the synthesized composite nanostructures are dominated mainly by a broad interstitial defect related luminescence centered at ~630 nm. Spatially resolved CL images reveal that the luminescence of the decorated ZnO nanostructures is enhanced by the presence of the NiO. View Full-Text
Keywords: ZnO nanorods; NiO nanostructure; composite nanostructures; defect states; cathodoluminescent. ZnO nanorods; NiO nanostructure; composite nanostructures; defect states; cathodoluminescent.
MDPI and ACS Style

Abbasi, M.A.; Ibupoto, Z.H.; Hussain, M.; Pozina, G.; Lu, J.; Hultman, L.; Nur, O.; Willander, M. Decoration of ZnO Nanorods with Coral Reefs like NiO Nanostructures by the Hydrothermal Growth Method and Their Luminescence Study. Materials 2014, 7, 430-440.

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