FESEM studies of densely packed aligned nickel nanopillars on silicon substrate by electrochemical deposition through porous alumina membrane

Joo, Sang Woo; Banerjee, Arghya Narayan

doi:10.1016/j.mseb.2010.06.016

Cited by 7 publications

(7 citation statements)

References 30 publications

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“…Consequently, many studies in the corresponding literature deal with the different properties of Ni nanorods that are synthesized by electrodeposition into porous templates. Among others, the studied topics account for optical, magnetic, crystallographic and compositional properties [ 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 , 88 ]. Within the current review, we focus on Ni nanorod applications that enable to examine phenomena that are additional to the determination of the physical properties of bare Ni nanorods only.…”

Section: Nickel Nanorod Applicationsmentioning

confidence: 99%

Applications, Surface Modification and Functionalization of Nickel Nanorods

2017

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The growing number of nanoparticle applications in science and industry is leading to increasingly complex nanostructures that fulfill certain tasks in a specific environment. Nickel nanorods already possess promising properties due to their magnetic behavior and their elongated shape. The relevance of this kind of nanorod in a complex measurement setting can be further improved by suitable surface modification and functionalization procedures, so that customized nanostructures for a specific application become available. In this review, we focus on nickel nanorods that are synthesized by electrodeposition into porous templates, as this is the most common type of nickel nanorod fabrication method. Moreover, it is a facile synthesis approach that can be easily established in a laboratory environment. Firstly, we will discuss possible applications of nickel nanorods ranging from data storage to catalysis, biosensing and cancer treatment. Secondly, we will focus on nickel nanorod surface modification strategies, which represent a crucial step for the successful application of nanorods in all medical and biological settings. Here, the immobilization of antibodies or peptides onto the nanorod surface adds another functionality in order to yield highly promising nanostructures.

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Section: Nickel Nanorod Applicationsmentioning

confidence: 99%

Applications, Surface Modification and Functionalization of Nickel Nanorods

2017

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“…For solid-state device compatibility as well as for some specific device applications in solar cells, field emission studies and sensor applications using vertically standing nanorods supported by rigid substrate are very important. [263][264][265] Very few groups reported the syntheses of TiO 2 nanowires/rods on rigid substrates. 210,237,247,253 These groups have used indium tin oxide (ITO)/fluorine-doped tin oxide-coated glass/Si substrate with sputter-deposited/ evaporated Ti thin films on them as the source materials.…”

Section: Solution-based Chemical Techniquesmentioning

confidence: 99%

The design, fabrication, and photocatalytic utility of nanostructured semiconductors: focus on TiO2-based nanostructures

Banerjee¹

2011

NSA

210

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Recent advances in basic fabrication techniques of TiO2-based nanomaterials such as nanoparticles, nanowires, nanoplatelets, and both physical- and solution-based techniques have been adopted by various research groups around the world. Our research focus has been mainly on various deposition parameters used for fabricating nanostructured materials, including TiO2-organic/inorganic nanocomposite materials. Technically, TiO2 shows relatively high reactivity under ultraviolet light, the energy of which exceeds the band gap of TiO2. The development of photocatalysts exhibiting high reactivity under visible light allows the main part of the solar spectrum to be used. Visible light-activated TiO2 could be prepared by doping or sensitizing. As far as doping of TiO2 is concerned, in obtaining tailored material with improved properties, metal and nonmetal doping has been performed in the context of improved photoactivity. Nonmetal doping seems to be more promising than metal doping. TiO2 represents an effective photocatalyst for water and air purification and for self-cleaning surfaces. Additionally, it can be used as an antibacterial agent because of its strong oxidation activity and superhydrophilicity. Therefore, applications of TiO2 in terms of photocatalytic activities are discussed here. The basic mechanisms of the photoactivities of TiO2 and nanostructures are considered alongside band structure engineering and surface modification in nanostructured TiO2 in the context of doping. The article reviews the basic structural, optical, and electrical properties of TiO2, followed by detailed fabrication techniques of 0-, 1-, and quasi-2-dimensional TiO2 nanomaterials. Applications and future directions of nanostructured TiO2 are considered in the context of various photoinduced phenomena such as hydrogen production, electricity generation via dye-sensitized solar cells, photokilling and self-cleaning effect, photo-oxidation of organic pollutant, wastewater management, and organic synthesis.

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“…Very few groups reported the alumina-pore-directed growth of nanowires on an Si substrate [24][25][26] but did not show any device fabrication for practical applications. We have previously shown the growth of Ni nanorods on a metalcoated Si substrate via alumina pores [27,28] and in this report we show the subsequent fabrication of a field emission device supported by a rigid substrate for practical applications.…”

Section: Introductionmentioning

confidence: 70%

Large field enhancement at electrochemically grown quasi-1D Ni nanostructures with low-threshold cold-field electron emission

2010

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Ni nanorod arrays have been vertically grown on a Ta-coated Si substrate via an electrodeposition process through the nanopores of a porous alumina membrane. Field emission studies of the samples are performed which show a considerable low-threshold field around 5 V µm(-1). The field emission mechanism followed Fowler-Nordheim tunneling due to large field enhancement at the emitter tips. Low-dimensional structures of the nanorod tips provided the large geometrical field enhancement and thus produce a high enough local or barrier field for low-threshold cold-field electron emission. The cost-effective synthesis of vertically aligned Ni nanorods on an Si substrate and low-threshold field emission properties can provide a potential alternative to conventional carbon-based field emitters for low power panel applications.

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FESEM studies of densely packed aligned nickel nanopillars on silicon substrate by electrochemical deposition through porous alumina membrane

Cited by 7 publications

References 30 publications

Applications, Surface Modification and Functionalization of Nickel Nanorods

Applications, Surface Modification and Functionalization of Nickel Nanorods

The design, fabrication, and photocatalytic utility of nanostructured semiconductors: focus on TiO2-based nanostructures

Large field enhancement at electrochemically grown quasi-1D Ni nanostructures with low-threshold cold-field electron emission

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