Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing
We report a novel synthesis of ZnO nanorods with hexagonal pyramid-like heads by a simple and low cost technique of spray pyrolysis with the help of zinc acetate and tin (IV) chloride pentahydrate precursors. In the present study, the growth of ZnO nanorods is optimized by varying a number of sprays...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2015
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| Online Access: | http://eprints.um.edu.my/14039/1/Tailoring_ZnO_nanostructures_by_spray_pyrolysis_and_thermal.pdf |
| _version_ | 1825720460756647936 |
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| author | Tharsika, T. Haseeb, A.S. Md. Abdul Akbar, S.A. Thanihaichelvan, M. |
| author_facet | Tharsika, T. Haseeb, A.S. Md. Abdul Akbar, S.A. Thanihaichelvan, M. |
| author_sort | Tharsika, T. |
| collection | UM |
| description | We report a novel synthesis of ZnO nanorods with hexagonal pyramid-like heads by a simple and low cost technique of spray pyrolysis with the help of zinc acetate and tin (IV) chloride pentahydrate precursors. In the present study, the growth of ZnO nanorods is optimized by varying a number of sprays and annealing temperatures in the synthesis process. FESEM analysis reveals that ZnO nanorods are observed when the number of sprays exceeds 150 and film-like structure is observed below 150 sprays. Nanorods are formed when the molar ratio of zinc acetate to tin (IV) chloride pentahydrate in the solution mixture is 3:1. The optimum annealed temperature for the growth of nanorods is determined to be 350 degrees C. The length and diameter of the vertically aligned nanorods are in the range of 1-3 mu m and 80 nm, respectively. XRD diffraction patterns and HRTEM analysis confirm that the ZnO nanorods are single crystals with a preferred growth direction of 0 0 0 1. The effect of various growth parameters including molar ratio of zinc acetate to tin (IV) chloride pentahydrate in the mixture, number of sprays and annealing temperatures on the growth of ZnO nanorods are systematically studied. A plausible growth mechanism for hexagonal pyramidal heads of ZnO nanorods is discussed. These ZnO nanorods with hexagonal pyramid tips have potential application in photovoltaic devices. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
| first_indexed | 2024-03-06T05:35:29Z |
| format | Article |
| id | um.eprints-14039 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:35:29Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-140392018-10-17T00:44:40Z http://eprints.um.edu.my/14039/ Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing Tharsika, T. Haseeb, A.S. Md. Abdul Akbar, S.A. Thanihaichelvan, M. T Technology (General) TJ Mechanical engineering and machinery We report a novel synthesis of ZnO nanorods with hexagonal pyramid-like heads by a simple and low cost technique of spray pyrolysis with the help of zinc acetate and tin (IV) chloride pentahydrate precursors. In the present study, the growth of ZnO nanorods is optimized by varying a number of sprays and annealing temperatures in the synthesis process. FESEM analysis reveals that ZnO nanorods are observed when the number of sprays exceeds 150 and film-like structure is observed below 150 sprays. Nanorods are formed when the molar ratio of zinc acetate to tin (IV) chloride pentahydrate in the solution mixture is 3:1. The optimum annealed temperature for the growth of nanorods is determined to be 350 degrees C. The length and diameter of the vertically aligned nanorods are in the range of 1-3 mu m and 80 nm, respectively. XRD diffraction patterns and HRTEM analysis confirm that the ZnO nanorods are single crystals with a preferred growth direction of 0 0 0 1. The effect of various growth parameters including molar ratio of zinc acetate to tin (IV) chloride pentahydrate in the mixture, number of sprays and annealing temperatures on the growth of ZnO nanorods are systematically studied. A plausible growth mechanism for hexagonal pyramidal heads of ZnO nanorods is discussed. These ZnO nanorods with hexagonal pyramid tips have potential application in photovoltaic devices. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. Elsevier 2015-04 Article PeerReviewed application/pdf en http://eprints.um.edu.my/14039/1/Tailoring_ZnO_nanostructures_by_spray_pyrolysis_and_thermal.pdf Tharsika, T. and Haseeb, A.S. Md. Abdul and Akbar, S.A. and Thanihaichelvan, M. (2015) Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing. Ceramics International, 41 (3). pp. 5205-5211. ISSN 0272-8842, DOI https://doi.org/10.1016/j.ceramint.2014.12.062 <https://doi.org/10.1016/j.ceramint.2014.12.062>. http://www.sciencedirect.com/science/article/pii/S027288421401983X doi:10.1016/j.ceramint.2014.12.062 |
| spellingShingle | T Technology (General) TJ Mechanical engineering and machinery Tharsika, T. Haseeb, A.S. Md. Abdul Akbar, S.A. Thanihaichelvan, M. Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing |
| title | Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing |
| title_full | Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing |
| title_fullStr | Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing |
| title_full_unstemmed | Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing |
| title_short | Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing |
| title_sort | tailoring zno nanostructures by spray pyrolysis and thermal annealing |
| topic | T Technology (General) TJ Mechanical engineering and machinery |
| url | http://eprints.um.edu.my/14039/1/Tailoring_ZnO_nanostructures_by_spray_pyrolysis_and_thermal.pdf |
| work_keys_str_mv | AT tharsikat tailoringznonanostructuresbyspraypyrolysisandthermalannealing AT haseebasmdabdul tailoringznonanostructuresbyspraypyrolysisandthermalannealing AT akbarsa tailoringznonanostructuresbyspraypyrolysisandthermalannealing AT thanihaichelvanm tailoringznonanostructuresbyspraypyrolysisandthermalannealing |