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Effect of Different Seed Solutions on the Morphology and Electrooptical Properties of ZnO Nanorods
University of Malaysia Perlis, Malaysia .
University of Malaysia Perlis, Malaysia .
University of Malaya, Malaysia .
NED University of Engineering and Technology, Pakistan .
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2012 (English)In: Journal of Nanomaterials, ISSN 1687-4110, Vol. 2012, no 452407Article in journal (Refereed) Published
Abstract [en]

The morphology and electrooptical properties of ZnO nanorods synthesized on monoethanolamine-based seed layer and KOH-based seed layer were compared. The seed solutions were prepared in monoethanolamine in 2-methoxyethanol and potassium hydroxide in methanol, respectively. Zinc acetate dihydrate was as a common precursor in both solutions. The nanorod-ZnOs were synthesized via the spin coating of two different seed solutions on silicon substrates followed by their hydrothermal growth. The scanning electron microscopy (SEM), X-ray diffraction (XRD), photoluminescence (PL), and Raman studies revealed that the ZnO nanorods obtained from monoethanolamine-based seed layer had fewer defects, better crystals, and better alignment than those realized via KOH-based seed layer. However, the current-voltage (I-V) characteristics demonstrated better conductivity of the ZnO nanorods obtained via KOH-based seed layer. The current measured in forward bias was 4 mA and 40 mu A for ZnO-nanorods grown on KOH-based seed layer and monoethanolamine-based with the turn on voltage of approximately 1.5 V and 2.5V, respectively, showing the feasibility of using both structures in optoelectric devices.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation , 2012. Vol. 2012, no 452407
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-85308DOI: 10.1155/2012/452407ISI: 000309778300001OAI: diva2:567995

Funding Agencies|Ministry of higher education (MOHE)|9003-00276|

Available from: 2012-11-15 Created: 2012-11-15 Last updated: 2014-01-15

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Ibupoto, Zafar HussainWillander, Magnus
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