Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: control of morphologies and optical properties
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 di...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
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IOP Publishing
2017
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| Online Access: | http://hdl.handle.net/1721.1/111956 https://orcid.org/0000-0003-2498-4019 https://orcid.org/0000-0003-2262-1249 |
| _version_ | 1826211394697035776 |
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| author | Zhang, Chen Huang, Xiaohu Liu, Hongfei Chua, Soo Jin Ross, Caroline A |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Zhang, Chen Huang, Xiaohu Liu, Hongfei Chua, Soo Jin Ross, Caroline A |
| author_sort | Zhang, Chen |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T15:05:31Z |
| format | Article |
| id | mit-1721.1/111956 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T15:05:31Z |
| publishDate | 2017 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1119562022-10-02T00:31:57Z Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: control of morphologies and optical properties Zhang, Chen Huang, Xiaohu Liu, Hongfei Chua, Soo Jin Ross, Caroline A Massachusetts Institute of Technology. Department of Materials Science and Engineering Zhang, Chen Ross, Caroline A 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. 2017-10-23T16:05:23Z 2017-10-23T16:05:23Z 2016-11 2016-06 2017-10-17T15:42:40Z Article http://purl.org/eprint/type/JournalArticle 0957-4484 1361-6528 http://hdl.handle.net/1721.1/111956 Zhang, Chen et al. “Large-Area Zinc Oxide Nanorod Arrays Templated by Nanoimprint Lithography: Control of Morphologies and Optical Properties.” Nanotechnology 27, 48 (November 2016): 485604. © 2016 IOP Publishing Ltd https://orcid.org/0000-0003-2498-4019 https://orcid.org/0000-0003-2262-1249 http://dx.doi.org/10.1088/0957-4484/27/48/485604 Nanotechnology Creative Commons Attribution 3.0 Unported license http://creativecommons.org/licenses/by/3.0/ application/pdf IOP Publishing IOP Publishing |
| spellingShingle | Zhang, Chen Huang, Xiaohu Liu, Hongfei Chua, Soo Jin Ross, Caroline A Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: control of morphologies and optical properties |
| title | Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: control of morphologies and optical properties |
| title_full | Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: control of morphologies and optical properties |
| title_fullStr | Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: control of morphologies and optical properties |
| title_full_unstemmed | Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: control of morphologies and optical properties |
| title_short | Large-area zinc oxide nanorod arrays templated by nanoimprint lithography: control of morphologies and optical properties |
| title_sort | large area zinc oxide nanorod arrays templated by nanoimprint lithography control of morphologies and optical properties |
| url | http://hdl.handle.net/1721.1/111956 https://orcid.org/0000-0003-2498-4019 https://orcid.org/0000-0003-2262-1249 |
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