Effect of AZO Substrates on Self-Seeded Electrochemical Growth of Vertically Aligned ZnO Nanorod Arrays and Their Optical Properties
| العنوان: | Effect of AZO Substrates on Self-Seeded Electrochemical Growth of Vertically Aligned ZnO Nanorod Arrays and Their Optical Properties |
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| المؤلفون: | Theodoros Dimopoulos, Emil List, Hubert Brückl, Markus Postl, Roland Resel, A. Peic, S. Abermann |
| المصدر: | Journal of Nanomaterials, Vol 2012 (2012) |
| بيانات النشر: | Hindawi Limited, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Photoluminescence, Materials science, Article Subject, business.industry, Scanning electron microscope, Nanotechnology, Substrate (electronics), Electrode, lcsh:Technology (General), Optoelectronics, lcsh:T1-995, General Materials Science, Nanorod, Crystallite, business, Layer (electronics), Wurtzite crystal structure |
| الوصف: | We present a single step and an electrochemical synthesis of vertically aligned ZnO nanorod (NR) arrays, directly on transparent aluminium-doped zinc oxide (AZO) electrodes. The NRs grow from mild, aqueous-based solution at low temperature, with no need for catalysts or additional seed layer. The use of textured AZO as substrate allows for highly effective growth of hexagonally faceted, single-crystalline ZnO NRs along the wurtzitec-axis. The matching of the crystal lattices initiates a self-seeding route, thus the inherent growth habit of the AZO crystallites advances the vertical growth and alignment of NRs. Moreover, the thickness-dependant grain size of the AZO layer provides a valuable feature for tuning the diameter of ZnO NRs grown atop. In the absence of any seed mediator, the interfacial quality is expected to improve significantly. This should enhance the thermal and electrical transport throughout the whole nanostructured transparent electrode. The NR growth was investigated under systematic manipulation of the synthesis variables in order to optimize growth conditions for highly aligned, single-crystalline NRs with a large aspect ratio and a good optical quality. The structure and optical property of the AZO/ZnO NR ensembles were characterized by atomic force microscopy, scanning electron microscopy, X-ray diffraction, photoluminescence, and ultraviolet-visible transmission spectroscopy. |
| وصف الملف: | text/xhtml |
| اللغة: | English |
| تدمد: | 1687-4129 1687-4110 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5fe24d1d07f3ce2f66dc2ce0af8df5f https://doaj.org/article/bc9019656a2043bb91c028e9099c5810 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c5fe24d1d07f3ce2f66dc2ce0af8df5f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 16874129 16874110 |
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