Catalyst-Free Direct Vapor-Phase Growth of Hexagonal ZnO Nanowires on α-Al2O3
| العنوان: | Catalyst-Free Direct Vapor-Phase Growth of Hexagonal ZnO Nanowires on α-Al2O3 |
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| المؤلفون: | Matthew H. Ervin, S. J. Kilpatrick, Shiva S. Hullavarad, Nilima V. Hullavarad, Alma Wickenden, T. Venkatesan, R. D. Vispute, Barbara Nichols |
| المصدر: | Journal of Electronic Materials. 39:1209-1217 |
| بيانات النشر: | Springer Science and Business Media LLC, 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Photoluminescence, Chemistry, Nanowire, Nucleation, Analytical chemistry, Cathodoluminescence, Condensed Matter Physics, medicine.disease_cause, Electronic, Optical and Magnetic Materials, Pulsed laser deposition, X-ray photoelectron spectroscopy, X-ray crystallography, Materials Chemistry, medicine, Electrical and Electronic Engineering, Ultraviolet |
| الوصف: | The evolution of ZnO nanowires has been studied under supersaturation of Zn metal species with and without a ZnO thin-film buffer layer on α-Al2O3 deposited by the pulsed laser ablation technique. The nanowires had diameters in the range of 30 nm to 50 nm and lengths in the range of 5 μm to 10 μm with clear hexagonal shape and \( [000\bar{1}] \), \( [10\bar{1}1] \), and \( [10\bar{1}0] \) facets. X-ray diffraction (XRD) measurements indicated crystalline properties for the ZnO nanostructures grown on pulsed laser deposition (PLD) ZnO nucleation layers. The optical properties were analyzed by photoluminescence (PL) and cathodoluminescence (CL) measurements. The ZnO nanowires were found to emit strong ultraviolet (UV) light at 386 nm and weak green emission as observed by PL measurements. The stoichiometry of Zn and O was found to be close to 1 by x-ray photoelectron spectroscopy (XPS) measurements. The process-dependent growth properties of ZnO nanostructures can be harnessed for future development of nanoelectronic components including optically pumped lasers, optical modulators, detectors, electron emitters, and gas sensors. |
| تدمد: | 1543-186X 0361-5235 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::50e13a46e72f05a4cd409033749e3f57 https://doi.org/10.1007/s11664-010-1251-z |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........50e13a46e72f05a4cd409033749e3f57 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1543186X 03615235 |
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