Synthesis of ZnO/Cu micro and nanostructures via a vapor phase transport method using different tube systems
ZnO micro and nanostructures were grown on copper coated silicon substrates using two different systems: an opened system (both ends opened tube) and a closed system (one closed end tube). The thermodynamic conditions of the systems made a significant difference in boundary layer and super-saturatio...
| Main Authors: | , , |
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| Format: | Article |
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Elsevier
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/35580/ |
| _version_ | 1848848095009308672 |
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| author | Kamalianfar, Ahmad Shaari, Abdul Halim Zak, Ali Khorsand |
| author_facet | Kamalianfar, Ahmad Shaari, Abdul Halim Zak, Ali Khorsand |
| author_sort | Kamalianfar, Ahmad |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | ZnO micro and nanostructures were grown on copper coated silicon substrates using two different systems: an opened system (both ends opened tube) and a closed system (one closed end tube). The thermodynamic conditions of the systems made a significant difference in boundary layer and super-saturation between the systems. The results indicate that diffusion of the gaseous species through the boundary layers at low and high pressures controls the final formation of the morphologies. The ZnO nanostructures which have been grown in a restricted place have larger diameters and lengths. The structure of the products was analyzed by X-ray diffractometer (XRD) and it was found that the good crystalline quality of the samples was obtained in a closed system. To study the optical properties, photoluminescence (PL) and ultra violet–visible (UV–vis) spectroscopy were employed. It was observed that a decrease in the growth temperature of the opened system caused a broad and dominant visible emission covering the blue and green emission in the PL spectra. |
| first_indexed | 2025-11-15T09:29:03Z |
| format | Article |
| id | upm-35580 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T09:29:03Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-355802016-01-18T01:17:27Z http://psasir.upm.edu.my/id/eprint/35580/ Synthesis of ZnO/Cu micro and nanostructures via a vapor phase transport method using different tube systems Kamalianfar, Ahmad Shaari, Abdul Halim Zak, Ali Khorsand ZnO micro and nanostructures were grown on copper coated silicon substrates using two different systems: an opened system (both ends opened tube) and a closed system (one closed end tube). The thermodynamic conditions of the systems made a significant difference in boundary layer and super-saturation between the systems. The results indicate that diffusion of the gaseous species through the boundary layers at low and high pressures controls the final formation of the morphologies. The ZnO nanostructures which have been grown in a restricted place have larger diameters and lengths. The structure of the products was analyzed by X-ray diffractometer (XRD) and it was found that the good crystalline quality of the samples was obtained in a closed system. To study the optical properties, photoluminescence (PL) and ultra violet–visible (UV–vis) spectroscopy were employed. It was observed that a decrease in the growth temperature of the opened system caused a broad and dominant visible emission covering the blue and green emission in the PL spectra. Elsevier 2014-03 Article PeerReviewed Kamalianfar, Ahmad and Shaari, Abdul Halim and Zak, Ali Khorsand (2014) Synthesis of ZnO/Cu micro and nanostructures via a vapor phase transport method using different tube systems. Ceramics International, 40 (2). pp. 3193-3198. ISSN 0272-8842; ESSN: 1873-3956 http://www.sciencedirect.com/science/article/pii/S0272884213012261 10.1016/j.ceramint.2013.09.123 |
| spellingShingle | Kamalianfar, Ahmad Shaari, Abdul Halim Zak, Ali Khorsand Synthesis of ZnO/Cu micro and nanostructures via a vapor phase transport method using different tube systems |
| title | Synthesis of ZnO/Cu micro and nanostructures via a vapor phase transport method using different tube systems |
| title_full | Synthesis of ZnO/Cu micro and nanostructures via a vapor phase transport method using different tube systems |
| title_fullStr | Synthesis of ZnO/Cu micro and nanostructures via a vapor phase transport method using different tube systems |
| title_full_unstemmed | Synthesis of ZnO/Cu micro and nanostructures via a vapor phase transport method using different tube systems |
| title_short | Synthesis of ZnO/Cu micro and nanostructures via a vapor phase transport method using different tube systems |
| title_sort | synthesis of zno/cu micro and nanostructures via a vapor phase transport method using different tube systems |
| url | http://psasir.upm.edu.my/id/eprint/35580/ http://psasir.upm.edu.my/id/eprint/35580/ http://psasir.upm.edu.my/id/eprint/35580/ |