Fabrication of Anodic Aluminum Oxide Template and Copper Nanowire Surface Fastener

2014 ◽  
Vol 136 (4) ◽  
Author(s):  
Hiromasa Teshima ◽  
Kohei Kojima ◽  
Yang Ju
Keyword(s):  
Aluminum Oxide ◽  
Anodic Aluminum Oxide ◽  
Pore Diameter ◽  
Nanowire Array ◽  
Anodic Aluminum Oxide Template ◽  
Nanowire Arrays ◽  
Anodic Aluminum ◽  
Parasitic Resistance ◽  
Nanowire Surface ◽  
Through Hole

Through-hole anodic aluminum oxide (AAO) was fabricated by two steps anodization method. The pore diameter of the AAO was 40 nm. Cu nanowire array was prepared using the fabricated AAO as a template by electrochemical deposition. The mechanical and electrical performances of Cu nanowire surface fastener (NSF) were realized by the interconnection of Cu nanowire arrays. The shear and normal bonding strengths for the Cu NSF with 40 nm diameter nanowires were 3.38 × 10−3 and 2.46 × 10−3 N/cm2, respectively, and the parasitic resistance of it was approximately 22.5 Ω · cm2.

Porous CdS Nanowire Arrays Self-assembled in Anodic Aluminum Oxide Template

2005 ◽  
Vol 34 (7) ◽  
pp. 896-897 ◽  
Author(s):  
Xueru Zhang ◽  
Xiaoyou Yuan ◽  
Yong Zhang ◽  
Qing Wei ◽  
Guowen Meng ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Anodic Aluminum Oxide ◽  
Anodic Aluminum Oxide Template ◽  
Nanowire Arrays ◽  
Anodic Aluminum ◽  
Cds Nanowire ◽  
Self Assembled

Fabrication of Anodic Aluminum Oxide Template and Cu Nanowire Surface Fastener

2013 ◽  
Author(s):  
Hiromasa Teshima ◽  
Kohei Kojima ◽  
Yang Ju
Keyword(s):  
Aluminum Oxide ◽  
Barrier Layer ◽  
Anodic Aluminum Oxide ◽  
Anodic Aluminum Oxide Template ◽  
Aluminum Film ◽  
Surface Mount Technology ◽  
Anodic Aluminum Oxide Membrane ◽  
Anodic Aluminum ◽  
Nanowire Surface ◽  
Oxide Membrane

There is an urgent need in surface mount technology (SMT) for a nontoxic, reusable and low temperature bonding technique which can afford good mechanical support as well as electrical contact. Meanwhile in the nanotechnology, many excellent and unique structure-related properties such as the high mechanical strength, the high conductivity and the adhesion ability of gecko feet have been studied. Our lab proposes a new patterned structure of Au nanowire array named nanowire surface fastener (NSF), which cold bonding for surface mount technology can be realized at room temperature. Then various methods have been developed to fabricate nanowire, such as arc discharge, catalytic CVD growth and template synthesis, and so on. Among these methods, the template method has been widely used for preparing one-dimensional nanostructures such as metals, semiconductors, polymers, and other materials by electrochemical, electroless deposition or sol-gel technique. Especially anodic aluminum oxide template assisted way has attached considerable attention due to its unique structure properties, such as controllable pore diameter, extremely narrow pore size distribution with high densities, high aspect ratios, and ideally cylindrical pore shape. The well arranged porous anodic aluminum oxide membrane is fabricated from aluminum film by two steps zM oxalic acid electrolytes. The anodic aluminum oxide membrane was investigated for features such as pore size, interpore distance, and thickness by 40 V. It is important for fabrication of porous anodic aluminum oxide template to find out elimination of the barrier layer of oxide and the pore extending rate by 0.5 M phosphoric acid. Morphologies of surface of aluminum film between anodization process and the anodic aluminum oxide barrier layer was researched by using atomic force microscope and scanning electron microscope. Results showed that the anodic aluminum oxide having the same diameter of the pore and the well arranged pore array without branching channel was obtained. The diameter of the pore before the pore extending treatment is 42 nm and the diameter of the pore after the pore extending treatment for 30 minutes is 86 nm. It was found that the diameter of the pore increased per 15 nm by the pore extending treatment for 10 minutes. We fabricated the through-hole anodic aluminum oxide template and made Cu nanowire by the template of our own making. By using Cu nanowire, we try to produce nanowire surface fastener and evaluate its properties.

Preparation of II-VI group semiconductor nanowire arrays by dc electrochemical deposition in porous aluminum oxide templates

2000 ◽  
Vol 72 (1-2) ◽  
pp. 127-135 ◽  
Author(s):  
Dongsheng Xu ◽  
Dapeng Chen ◽  
Yajie Xu ◽  
Xuesong Shi ◽  
Guolin Guo ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Single Crystal ◽  
Anodic Aluminum Oxide ◽  
Anodic Aluminum Oxide Template ◽  
Nanowire Arrays ◽  
Semiconductor Nanowire ◽  
Porous Aluminum ◽  
Anodic Aluminum ◽  
Wide Range ◽  
Porous Aluminum Oxide

II-VI group compound semiconductors such as CdS, CdSe, and CdTe nanowire arrays have been prepared by direct current electrodeposition in porous anodic aluminum oxide template from nonaqueous electrolyte. SEM and TEM results show that these nanowires have a highly anisotropic structure of aligned nanowires with diameters of 15-200 nm, which are consistent with the diameters of the templates used. Electron diffraction and HREM investigations demonstrate that the crystalline structures of these nanowires are uniform hexagonal single crystal. This approach can be used to fabricate single crystal nanowire arrays of a wide range of semiconductors and other materials.

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