Controlled growth of well-aligned hierarchical ZnO arrays by a wet chemical method |
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| Authors: | Shanshan Yue Jinjun Lu Junyan Zhang |
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| Affiliation: | 1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China;2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, PR China;1. N.N. Semenov Institute of Chemical Physics, RAS, Kosigin str. 4, Moscow 119991, Russia;2. Moscow Institute of Physics and Technology, Institutskii per. 9, Dolgoprudny, Moscow 141700, Russia;3. Institute of Problem of Chemical Physics, RAS, Semenov av. 1, Chernogolovka, 142432, Russia;1. Inorganic Chemistry Department, Faculty of Chemistry, University of Tabriz, C.P. 51664 Tabriz, Iran;2. Food Science and Technology Department, International Aras Campus, University of Tabriz, Iran;3. Experimental Physics, Faculty of Physics, Lotharstr. 1, University of Duisburg-Essen, Duisburg, Germany;1. Department of Physics, Presidency University, Kolkata 700073, India;2. Department of Instrumentation Science, Jadavpur University, Kolkata 700032, India;1. Division of Materials Chemistry, Ru?er Bo?kovi? Institute, Bijeni?ka 54, P.O. Box 180, HR-10002 Zagreb, Croatia;2. National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia |
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| Abstract: | A simple synthesis route to hierarchical ZnO arrays on zinc substrate in aqueous solution containing zinc nitrate and ammonia water was reported, without the assistance of any seeds, catalysts and surfactants. The as-prepared product consisted of very thin nanosheets attached onto the top of well-aligned nanorod arrays. A possible growth mechanism was proposed. The room-temperature photoluminescence spectrum showed UV emission around 398 nm and diverse visible emission peaks, indicating there might be a large concentration of oxygen defects in the sample. This method is both controllable and reproducible. |
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