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Báo cáo hóa học: "Anodic Aluminum Oxide Membrane-Assisted Fabrication of b-In2S3 Nanowires"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Anodic Aluminum Oxide Membrane-Assisted Fabrication of b-In2S3 Nanowires | Nanoscale Res Lett 2009 4 1059-1063 DOI 10.1007 S11671-009-9357-Z NANO EXPRESS Anodic Aluminum Oxide Membrane-Assisted Fabrication of b-In2S3 Nanowires Jen-Bin Shi Chih-Jung Chen Ya-Ting Lin Wen-Chia Hsu Yu-Cheng Chen Po-Feng Wu Received 9 March 2009 Accepted 24 May 2009 Published online 6 June 2009 to the authors 2009 Abstract In this study b-In2S3 nanowires were first synthesized by sulfurizing the pure Indium In nanowires in an AAO membrane. As FE-SEM results b-In2S3 nanowires are highly ordered arranged tightly corresponding to the high porosity of the AAO membrane used. The diameter of the b-In2S3 nanowires is about 60 nm with the length of about 6-8 m. Moreover the aspect ratio of b-In2S3 nanowires is up to 117. An EDS analysis revealed the b-In2S3 nanowires with an atomic ratio of nearly S In 1.5. X-ray diffraction and corresponding selected area electron diffraction patterns demonstrated that the b-In2S3 nanowire is tetragonal polycrystalline. The direct band gap energy Eg is 2.40 eV from the optical measurement and it is reasonable with literature. Keywords Nanomaterials In2S3 Nanowire AAO Introduction Nowadays one-dimensional 1-D nanomaterials nanorods nanowires nanobelts and nanotubes have been attractive due to their physical and chemical properties. These nanostructures in particular show results in electronics 1 magnetic 2 optics etc. that have great potential applications in the next generation of nanodevices 3 . J.-B. Shi W.-C. Hsu Department of Electronic Engineering Feng Chia University Taichung 40724 Taiwan C.-J. Chen Y.-T. Lin H Y.-C. Chen P.-F. Wu The Graduate Institute of Electrical and Communications Engineering Feng Chia University 100 Wen-Hwa Rd Seatwen Taichung 40724 Taiwan e-mail p9431597@fcu.edu.tw Various methods such as chemical vapor deposition CVD laser ablation thermal evaporation hydrothermal process and anodic aluminum oxide AAO membrane-assisted synthesis method have been employed to prepare 1-D nanomaterials. AAO membrane-based