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    Effect of different seed solutions on the morphology and electrooptical properties of ZnO Nanorods

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    Date
    2012
    Author
    Muhammad Kashif, Muhammad Faroow
    Uda, Hashim, Prof. Dr.
    Md. Eaqub, Ali, Dr.
    Syed Muhammad, Usman Ali Shah, Dr.
    Mohamad Rusop, Mahmood, Assoc Prof. Dr.
    Zafar Hussain, Ibupoto
    Willander, Magnus
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    Abstract
    The morphology and electrooptical properties of ZnO nanorods synthesized on monoethanolamine-based seed layer and KOHbased 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 f/A for ZnOnanorods grown on KOH-based seed layer and monoethanolamine-based with the turn on voltage of approximately 1.5 V and 2.5 V, respectively, showing the feasibility of using both structures in optoelectric devices.
    URI
    http://www.hindawi.com/journals/jnm/2012/452407/
    http://dspace.unimap.edu.my:80/dspace/handle/123456789/32141
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    • Uda Hashim, Prof. Ts. Dr. [243]
    • Institute of Nano Electronic Engineering (INEE) (Articles) [206]

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