TAILIEUCHUNG - Báo cáo hóa học: " Hydrothermally Grown ZnO Micro/Nanotube Arrays and Their Properties"

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: Hydrothermally Grown ZnO Micro/Nanotube Arrays and Their Properties | Nanoscale Res Lett 2010 5 570-575 DOI s11671-009-9506-4 NANO EXPRESS Hydrothermally Grown ZnO Micro Nanotube Arrays and Their Properties Huibo Chen Xiang Wu Lihong Gong Cai Ye Fengyu Qu Guozhen Shen Received 20 October 2009 Accepted 1 December 2009 Published online 16 December 2009 The Author s 2009. This article is published with open access at Abstract We reported the optical and wettability properties of aligned zinc oxide micro nanotube arrays which were synthesized on zinc foil via a simple hydrothermal method. As-synthesized ZnO micro nanotubes have uniform growth directions along the 0001 orientations with diameters in the range of 100-700 nm. These micro nanotubes showed a strong emission peak at 387 nm and two weak emission peaks at 422 and 485 nm respectively and have the hydrophobic properties with a contact angle of 121 . Single ZnO micro nanotube-based field-effect transistor was also fabricated which shows typical n-type semiconducting behavior. Keywords ZnO Nanotubes Arrays Introduction One-dimensional 1-D nanostructures become the focus of current research because of the unique properties related with their special structures such as high surface-to-vol-ume ratios special compositions etc. 1-15 . They play important roles in fabricating nanoscale functional electronic optoelectronic electrochemical and mechanical devices. Among the numerous 1-D nanostructures 1-D H. Chen X. Wu L. Gong C. Ye F. Qu College of Chemistry and Chemical Engineering Harbin Normal University 150025 Harbin People s Republic of China e-mail wuxiang05@ G. Shen Wuhan National Laboratory for Optoelectronics and College of Optoelectronic Science and Engineering Huazhong University of Science and Technology 430074 Wuhan People s Republic of China e-mail gzshen@ metal oxide nanostructures have been widely investigated and now have been widely used in many areas such as catalysts sensors ceramics transparent oxide conductive films TOC

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