Influence of OH− Ion Concentration on the Surface Morphology of ZnO-SiO2 Nanostructure
The influence of varying OH− ion concentration on the surface morphology of chemically deposited ZnO-SiO2 nanostructures on glass substrate was investigated. The morphological features, phase structure, and infrared characteristics were examined by scanning electron microscopy (SEM), X-ray diffracti...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2015/686021 |
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| author | Jessica Ven G. Tinio Key T. Simfroso Amber Dea Marie V. Peguit Rolando T. Candidato |
| author_facet | Jessica Ven G. Tinio Key T. Simfroso Amber Dea Marie V. Peguit Rolando T. Candidato |
| author_sort | Jessica Ven G. Tinio |
| collection | DOAJ |
| description | The influence of varying OH− ion concentration on the surface morphology of chemically deposited ZnO-SiO2 nanostructures on glass substrate was investigated. The morphological features, phase structure, and infrared characteristics were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR), respectively. Results revealed that silica significantly changes the hexagonal morphology of bare ZnO rod to “pointed tips” when using low initial OH− precursor concentration. Increasing OH− ion concentration resulted in a “flower-like” formation of ZnO-SiO2 and a remarkable change from “pointed tips” to “hemispherical tips” at the top surface of the rods. The surface capping of SiO2 to ZnO leads to the formation of these “hemispherical tips.” The infrared spectroscopic analysis showed the characteristics peaks of ZnO and SiO2 as well as the Si-O-Zn band which confirms the formation of ZnO-SiO2. Phase analysis manifested that the formed ZnO-SiO2 is of wurtzite structure. Furthermore, a possible growth mechanism is proposed based on the obtained results. |
| format | Article |
| id | doaj-art-b39426f1e53c48ac9c1aa86f73786ba8 |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-b39426f1e53c48ac9c1aa86f73786ba82025-02-03T01:11:00ZengWileyJournal of Nanotechnology1687-95031687-95112015-01-01201510.1155/2015/686021686021Influence of OH− Ion Concentration on the Surface Morphology of ZnO-SiO2 NanostructureJessica Ven G. Tinio0Key T. Simfroso1Amber Dea Marie V. Peguit2Rolando T. Candidato3Materials Science Laboratory, Physics Department, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, A. Bonifacio Avenue, Tibanga, 9200 Iligan, PhilippinesMaterials Science Laboratory, Physics Department, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, A. Bonifacio Avenue, Tibanga, 9200 Iligan, PhilippinesMaterials Science Laboratory, Physics Department, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, A. Bonifacio Avenue, Tibanga, 9200 Iligan, PhilippinesMaterials Science Laboratory, Physics Department, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, A. Bonifacio Avenue, Tibanga, 9200 Iligan, PhilippinesThe influence of varying OH− ion concentration on the surface morphology of chemically deposited ZnO-SiO2 nanostructures on glass substrate was investigated. The morphological features, phase structure, and infrared characteristics were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR), respectively. Results revealed that silica significantly changes the hexagonal morphology of bare ZnO rod to “pointed tips” when using low initial OH− precursor concentration. Increasing OH− ion concentration resulted in a “flower-like” formation of ZnO-SiO2 and a remarkable change from “pointed tips” to “hemispherical tips” at the top surface of the rods. The surface capping of SiO2 to ZnO leads to the formation of these “hemispherical tips.” The infrared spectroscopic analysis showed the characteristics peaks of ZnO and SiO2 as well as the Si-O-Zn band which confirms the formation of ZnO-SiO2. Phase analysis manifested that the formed ZnO-SiO2 is of wurtzite structure. Furthermore, a possible growth mechanism is proposed based on the obtained results.http://dx.doi.org/10.1155/2015/686021 |
| spellingShingle | Jessica Ven G. Tinio Key T. Simfroso Amber Dea Marie V. Peguit Rolando T. Candidato Influence of OH− Ion Concentration on the Surface Morphology of ZnO-SiO2 Nanostructure Journal of Nanotechnology |
| title | Influence of OH− Ion Concentration on the Surface Morphology of ZnO-SiO2 Nanostructure |
| title_full | Influence of OH− Ion Concentration on the Surface Morphology of ZnO-SiO2 Nanostructure |
| title_fullStr | Influence of OH− Ion Concentration on the Surface Morphology of ZnO-SiO2 Nanostructure |
| title_full_unstemmed | Influence of OH− Ion Concentration on the Surface Morphology of ZnO-SiO2 Nanostructure |
| title_short | Influence of OH− Ion Concentration on the Surface Morphology of ZnO-SiO2 Nanostructure |
| title_sort | influence of oh ion concentration on the surface morphology of zno sio2 nanostructure |
| url | http://dx.doi.org/10.1155/2015/686021 |
| work_keys_str_mv | AT jessicavengtinio influenceofohionconcentrationonthesurfacemorphologyofznosio2nanostructure AT keytsimfroso influenceofohionconcentrationonthesurfacemorphologyofznosio2nanostructure AT amberdeamarievpeguit influenceofohionconcentrationonthesurfacemorphologyofznosio2nanostructure AT rolandotcandidato influenceofohionconcentrationonthesurfacemorphologyofznosio2nanostructure |