Preparation of anodic aluminum oxide (AAO) nano-template on silicon and its application to one-dimensional copper nano-pillar array formation

Shen, Ling; Ali, M. Mubarak; Gu, Zheng‐Bin; Min, Bong-Gi; Kim, Dong-Wook; Park, Chinho

doi:10.1007/s11814-012-0124-y

Cited by 8 publications

(5 citation statements)

References 23 publications

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“…The progress in the synthesis of CuO manifests in the variety of shapes and sizes that have been reported via different approaches. For example, nanoparticles (sonochemical [ 26 ], precipitation [ 27 ]), nanorods (hydrothermal) [ 24 , 28 ], 3D structures (templates as mesoporous silica KIT-6 [ 29 ], copper foam [ 30 ], or anodic aluminum oxide [ 31 ]), thin films (chemical vapor deposition) [ 32 ], and close-packed films (combination of thermal decomposition and oxidation) [ 33 ] were reported. However, there is a lingering need to develop methods that tackle specific disadvantages of the previously mentioned approaches.…”

Section: Introductionmentioning

confidence: 99%

Formation of Copper Oxide Nanotextures on Porous Calcium Carbonate Templates for Water Treatment

et al. 2021

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The necessity of providing clean water sources increases the demand to develop catalytic systems for water treatment. Good pollutants adsorbers are a key ingredient, and CuO is one of the candidate materials for this task. Among the different approaches for CuO synthesis, precipitation out of aqueous solutions is a leading candidate due to the facile synthesis, high yield, sustainability, and the reported shape control by adjustment of the counter anions. We harness this effect to investigate the formation of copper oxide-based 3D structures. Specifically, the counter anion (chloride, nitrate, and acetate) affects the formation of copper-based hydroxides and the final structure following their conversion into copper oxide nanostructures over porous templates. The formation of a 3D structure is obtained when copper chloride or nitrate reacts with a Sorites scaffold (marine-based calcium carbonate template) without external hydroxide addition. The transformation into copper oxides occurs after calcination or reduction of the obtained Cu2(OH)3X (X = Cl– or NO3–) while preserving the porous morphology. Finally, the formed Sorites@CuO structure is examined for water treatment to remove heavy metal cations and degrade organic contaminant molecules.

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Section: Introductionmentioning

confidence: 99%

Formation of Copper Oxide Nanotextures on Porous Calcium Carbonate Templates for Water Treatment

et al. 2021

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“…Pertaining to the problem, researchers have initiatively fabricated the home-made AAO template via anodization process. To date, three types of electrolyte (sulfuric acid, phosphoric acid and oxalic acid) have been used under the different conditions of voltage, temperature, etching and anodization time in fabricating the homemade template 4,5 . Home-made template can be either fabricated from the aluminium foil or aluminium film which integrates the use of no substrate or with substrate, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…To date, three types of electrolyte (sulfuric acid, phosphoric acid and oxalic acid) have been used under diverse conditions of voltage, temperature, etching and anodization time in fabricating the home-made template. 4,5 Home-made templates can be either fabricated from the aluminium foil or aluminium lm that integrates the use of no substrate or with substrate, respectively. In situ template growth would have to integrate the use of substrate in order to produce the standing porous template with good adhesion properties.…”

Section: Introductionmentioning

confidence: 99%

Infiltration of VOPcPhO into porous alumina template grown by in situ method

2016

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In this study, the fabrication of in-situ anodic alumina template (AAO) directly onto glass substrate is realized by varying the stirring speeds and molarity of phosphoric acid. Porous alumina template will then be used to infiltrate vanadyl 2, 9, 16, 23-tetraphenoxy-29H, 31H-phthalocyanine (VOPcPhO) prior to the formation of alumina:VOPcPhO nanocomposite. VOPcPhO has seen to fully infiltrate the template with the excess formation of VOPcPhO layer on top of the porous due to the lengthy immersion time of 6 hours. Uniformity and density of pore size, and available pore, can be respectively tuned by varying the stirring speeds (0 -300 rpm) and molarity of pore widening agent (0 -10 % of phosphoric acid). Roundedsphere shape of pores has been observed with higher transparency template is dominated by stirring the speed between 100 and 200 rpm. At these speeds, the template's pore size and pore density are highly homogeneous. Different molarity of phosphoric acid as a pore widening agent has an effect on the pore size and pore density. Occurrence of merging pores is observed by increasing the molarity of agent to 10% which unlikely to happen in the lower molarity of 5% phosphoric acid. Optical properties of alumina:VOPcPhO nanocomposites that identified from the characterization of UV-vis, photoluminescence (PL) and Raman spectroscopies, support the successful infiltration of VOPcPhO. Alumina:VOPcPhO nanocomposite has ability to absorb light at the longer wavelength and photon can be emitted by the nanocomposite at the respective energies.

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“…Recently, anodic aluminum oxide (AAO) has attracted much attention for its application to nano-scale electronic and photonic devices because of its ordered nature of nano-sized array of cylindrical pores. Metal particles (Ag, Au Pt) are deposited in the cylindrical pores [9][10][11][12]. High pure aluminum layer is dissolved by muriatic acid in order to obtain arrays of ordered nano-dot metal particles.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Anodic Aluminum Oxide Nano-Templates on Polycrystalline Silicon Substrates

Guo

Zhang

et al. 2013

AMR

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The anodic aluminum oxide (AAO) templates on polycrystalline silicon substrate are studied for growth of ordered nano-dot arrays in order to fabricate the porous silicon layers. The AAO templates on polycrystalline silicon substrate with pores of average diameter 50nm were successfully prepared by one-step anodization of high pure aluminum layer deposited on polycrystalline silicon in oxalic acid solution. Scanning electron microscopy (SEM) showed that alumina nano-pore arrays were nicely constructed with smooth wall morphologies and well-defined diameters.

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Preparation of anodic aluminum oxide (AAO) nano-template on silicon and its application to one-dimensional copper nano-pillar array formation

Cited by 8 publications

References 23 publications

Formation of Copper Oxide Nanotextures on Porous Calcium Carbonate Templates for Water Treatment

Formation of Copper Oxide Nanotextures on Porous Calcium Carbonate Templates for Water Treatment

Infiltration of VOPcPhO into porous alumina template grown by in situ method

Preparation of Anodic Aluminum Oxide Nano-Templates on Polycrystalline Silicon Substrates

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