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Electrodeposition of aligned arrays of ZnO nanorods in aqueous solution
Authors:Ravi Chander  AK Raychaudhuri
Institution:1. Department of Applied Physics, Guru Nanak Dev University, Amritsar-143001, India;2. S.N. Bose National Center For Basic Sciences Kolkata, India;3. Materials Research Center, Indian Institute of Science, Bangalore-560012, India;1. School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China;2. Optics and Photonic Technology Laboratory, Nanjing University of Information Science & Technology, Nanjing 210044, China;3. Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China;1. Institute of Condensed State Physics, Jilin Normal University, Siping 136000, PR China;2. Key Laboratory of Functional Materials Physics and Chemistry, Jilin Normal University, Ministry of Education, Siping 136000, PR China;3. College of Physics, Beihua University, Jilin 132013, PR China;1. Department of Chemistry, Kunming University, Kunming 650214, China;2. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;3. Key Laboratory of Yunnan Provincial Higher Education Institutions for Organic Optoelectronic Materials and Devices, Kunming University, Kunming 650214, China;4. The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan
Abstract:We report electrodeposition of ZnO nanorods from aqueous solution at low temperature (~80 °C). The substrates used were thin films of silver grown on glass by thermal evaporation. Nanorods were grown by electrodeposition from aqueous solution of Zinc Nitrate and Hexamethylenetetramine (HMT). The growth process lasts for up to 4 h and the optimum potential for growth of nanorods was ?0.8 V. The nanorods have a well-defined hexagonal morphology and have a Wurtzite structure. The nanorods were characterized by different techniques and have a band gap of 3.08 eV. The width of nanorods has a bimodal distribution.
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