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https://doi.org/10.1088/0957-4484/27/48/485604
Title: | Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: Control of morphologies and optical properties | Authors: | Zhang C. Huang X. Liu H. Chua S.J. Ross C.A. |
Keywords: | II-VI semiconductors Lithography Morphology Nanorods Optical properties Screw dislocations Zinc oxide Control of morphology lasing behavior Morphology control Multifunctional devices Solution synthesis Two-dimensional nucleation Zinc oxide nanorod arrays ZnO nanorod Nanoimprint lithography |
Issue Date: | 2016 | Publisher: | Institute of Physics Publishing | Citation: | Zhang C., Huang X., Liu H., Chua S.J., Ross C.A. (2016). Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: Control of morphologies and optical properties. Nanotechnology 27 (48) : 485604. ScholarBank@NUS Repository. https://doi.org/10.1088/0957-4484/27/48/485604 | Abstract: | Vertically aligned, highly ordered, large area arrays of nanostructures are important building blocks for multifunctional devices. Here, ZnO nanorod arrays are selectively synthesized on Si substrates by a solution method within patterns created by nanoimprint lithography. The growth modes of two dimensional nucleation-driven wedding cakes and screw dislocation-driven spirals are inferred to determine the top end morphologies of the nanorods. Sub-bandgap photoluminescence of the nanorods is greatly enhanced by the manipulation of the hydrogen donors via a post-growth thermal treatment. Lasing behavior is facilitated in the nanorods with faceted top ends formed from wedding cakes growth mode. This work demonstrates the control of morphologies of oxide nanostructures in a large scale and the optimization of the optical performance. © 2016 IOP Publishing Ltd. | Source Title: | Nanotechnology | URI: | https://scholarbank.nus.edu.sg/handle/10635/175243 | ISSN: | 0957-4484 | DOI: | 10.1088/0957-4484/27/48/485604 |
Appears in Collections: | Staff Publications Elements |
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