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Growth and characterization of ZnO nanowires for optical applications
King Saud University, Saudi Arabia .
King Saud University, Saudi Arabia; National Institute of Laser and Optronics, Nilore, Islamabad, Pakistan.
King Saud University, Saudi Arabia .
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, Faculty of Science & Engineering.
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2013 (English)In: Laser physics, ISSN 1054-660X, E-ISSN 1555-6611, Vol. 23, no 6, 065602Article in journal (Refereed) Published
Abstract [en]

In the present work, cerium oxide CeO2 nanoparticles were synthesized by the sol-gel method and used for the growth of ZnO nanorods. The synthesized nanoparticles were studied by x-ray diffraction (XRD) and Raman spectroscopic techniques. Furthermore, these nanoparticles were used as the seed layer for the growth of ZnO nanorods by following the hydrothermal growth method. The structural study of ZnO nanorods was carried out by means of field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM) and XRD techniques. This study demonstrated that the grown ZnO nanorods are well aligned, uniform, of good crystal quality and have diameters of less than 200 nm. Energy dispersive x-ray (EDX) analysis revealed that the ZnO nanorods are composed only of zinc, cerium as the seed atom, and oxygen atoms, with no other impurities in the grown nanorods. Moreover, a photoluminescence (PL) approach was applied for the optical characterization, and it was observed that the near-band-edge (NBE) emission was the same as that of the zinc acetate seed layer, however the green and orange/red emission peaks were slightly raised due to possibly higher levels of defects in the cerium oxide seeded ZnO nanorods. This study provides an alternative approach for the controlled synthesis of ZnO nanorods using cerium oxide nanoparticles as the seed nucleation layer, improving both the morphology of the nanorods and the performance of devices based upon them.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2013. Vol. 23, no 6, 065602
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:liu:diva-95500DOI: 10.1088/1054-660X/23/6/065602ISI: 000319458300015OAI: diva2:635785

Funding Agencies|King Saud University, College of Science Research Center||

Available from: 2013-07-05 Created: 2013-07-05 Last updated: 2016-10-12Bibliographically approved

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Khun, KimleangHussain Ibupoto, ZafarWillander, Magnus
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