Electrochemical synthesis of large diameter monocrystalline nickel nanowires in porous alumina membranes

Dellis, Spilios; Christoulaki, Anastasia; Spiliopoulos, Nikolaos; Anastassopoulos, D.L.; Vradis, Alexandros A.

doi:10.1063/1.4826900

Cited by 21 publications

(18 citation statements)

References 29 publications

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“…38 However the preferred orientation depends on the deposition conditions. 33 In the case of the electrodeposition technique it has been reported that the crystallinity depends on electrodeposition parameter like deposition potential and temperature. 33 By controlling the temperature and potential, single crystal of Ni nanowires has been produced.…”

Section: Resultsmentioning

confidence: 99%

“…33 In the case of the electrodeposition technique it has been reported that the crystallinity depends on electrodeposition parameter like deposition potential and temperature. 33 By controlling the temperature and potential, single crystal of Ni nanowires has been produced. 33 It has been also reported that the electrodepostion method can allow accomplishing the uniform preferred growth orientation by varying the applied potential.…”

Section: Resultsmentioning

confidence: 99%

“…The growth of metal crystallites during electrodeposition using porous materials is associated with a mobility assisted growth model that requires nucleation from the cathode substrate at the bottom of the pores. 33 To date most research has focused on the ordering of metal nanowires with uniform diameter (i.e., the control of their position and spacing), deposited in porous alumina with a regular, ordered structure. However, it is also essential to control the length and diametric uniformity along the length of nanowires for applications such as transparent conducting films.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Controlled Growth of Highly Aligned Cu Nanowires by Pulse Electrodeposition in Nanoporous Alumina

Yadav

Bobji

Bull

2019

j nanosci nanotechnol

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Metallic nanowire networks are emerging as potential replacements for transparent conducting oxide coatings because of their high conductivity, flexibility and relative transparency. However, a cheap, reliable and controlled manufacturing process is required to exploit this and the surface of the copper nanowire needs to be protected if high conductivity is to be retained. In this study a fabrication method for highly aligned and densely packed copper nanowires with controlled length using pulseelectrodeposition and a nanoporous alumina template has been developed. Nanoporous alumina was obtained by anodisation of pure aluminum in oxalic acid using a two-step anodisation process. In order to provide the conductivity at the bottom of the pores, a dendritic structure at the interface was created through the stepwise voltage reduction method with a voltage reduction rate of 15 V/s followed by mild chemical etching. Highly repeatable near 100% filling of copper is achieved. Copper nanowire length was highly controllable from 100 nm to 2 m with a fixed diameter of 60 ± 5 nm by monitoring current density during the deposition. Such controlled growth of Cu nanowires could lead towards transparent conducting layer applications but the protection of the material against oxidation remains an issue.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Controlled Growth of Highly Aligned Cu Nanowires by Pulse Electrodeposition in Nanoporous Alumina

Yadav

Bobji

Bull

2019

j nanosci nanotechnol

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show abstract

“…Furthermore, tuning of their magnetic properties can be done by adjusting electrodeposition conditions, such as bath temperature, 8 deposition potential, [9][10][11] electrolyte composition and pH value. 12 There are several strategies to modify the NW arrays in order to produce materials that differ from the parallel array of homogeneous nanowires.…”

Section: Introductionmentioning

confidence: 99%

Artificially modified magnetic anisotropy in interconnected nanowire networks

et al. 2015

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Interconnected or crossed magnetic nanowire networks have been fabricated by electrodeposition into a polycarbonate template with crossed cylindrical nanopores oriented ±30° with respect to the surface normal. Tailor-made nanoporous polymer membranes have been designed by performing a double energetic heavy ion irradiation with fixed incidence angles. The Ni and Ni/NiFe nanowire networks have been characterized by magnetometry as well as ferromagnetic resonance and compared with parallel nanowire arrays of the same diameter and density. The most interesting feature of these nanostructured materials is a significant reduction of the magnetic anisotropy when the external field is applied perpendicular and parallel to the plane of the sample. This effect is attributed to the relative orientation of the nanowire axes with the applied field. Moreover, the microwave transmission spectra of these nanowire networks display an asymmetric linewidth broadening, which may be interesting for the development of low-pass filters. Nanoporous templates made of well-defined nanochannel network constitute an interesting approach to fabricate materials with controlled anisotropy and microwave absorption properties that can be easily modified by adjusting the relative orientation of the nanochannels, pore sizes and material composition along the length of the nanowire.

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“…Although the preparation of Ni nanowire arrays by using template-assisted electrochemical deposition method has been extensively studied [25][26][27][28][29][30][31], the control of growth orientation and understanding the mechanism are challenged. In this work, we prepared Ni nanowire arrays by using an AAO template-assisted electrodeposition method.…”

Section: Introductionmentioning

confidence: 99%

Orientation Growth and Magnetic Properties of Electrochemical Deposited Nickel Nanowire Arrays

Wang

et al. 2019

Catalysts

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Highly ordered ferromagnetic metal nanowire arrays with preferred growth direction show potential applications in electronic and spintronic devices. In this work, by employing a porous anodic aluminum oxide template-assisted electrodeposition method, we successfully prepared Ni nanowire arrays. Importantly, the growth direction of Ni nanowire arrays can be controlled by varying the current densities. The crystalline and growth orientation of Ni nanowire arrays show effects on magnetic properties. Single-crystallinity Ni nanowires with [110] orientation show the best magnetic properties, including coercivity and squareness, along the parallel direction of the nanowire axis. The current preparation strategy can be used to obtain other nanowire arrays (such as metal, alloy, and semiconductor) with controlled growth direction in confined space, and is therefore of broad interest for different applications.

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Electrochemical synthesis of large diameter monocrystalline nickel nanowires in porous alumina membranes

Cited by 21 publications

References 29 publications

Controlled Growth of Highly Aligned Cu Nanowires by Pulse Electrodeposition in Nanoporous Alumina

Controlled Growth of Highly Aligned Cu Nanowires by Pulse Electrodeposition in Nanoporous Alumina

Artificially modified magnetic anisotropy in interconnected nanowire networks

Orientation Growth and Magnetic Properties of Electrochemical Deposited Nickel Nanowire Arrays

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