Fabrication and characterization of nanoscale arrays of nickel columns

O’Barr, R.; Yamamoto, S. Y.; Schultz, S.; Xu, Wen Yong; Scherer, Axel

doi:10.1063/1.365444

Cited by 80 publications

(36 citation statements)

References 10 publications

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“…The approach to directed self-assembly described here should be capable of producing single-layer particle arrays for sensors, 33 solar cells, 34 high-density/low-power storage media, 35 and other electronic devices. 36,37 The arrays can also be employed as ordered seed layers for the subsequent deposition of sintered particle films.…”

Section: Resultsmentioning

confidence: 99%

Directed self‐assembly by photostimulation of an amorphous semiconductor surface

Kondratenko

Seebauer

2010

AIChE Journal

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A method for nanoscale directed self-assembly is demonstrated that employs an amorphous semiconductor containing subcritical nuclei for crystallization. This strategy combines attractive features of top-down and bottom-up approaches by exploiting the self-organization capabilities latent in amorphous materials, but in a way that can be controlled by optical or electron beam exposure tools. The method was demonstrated with amorphous TiO 2 deposited on silicon, heated to 270 C, and exposed to low-level ultraviolet light.

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Section: Resultsmentioning

confidence: 99%

Directed self‐assembly by photostimulation of an amorphous semiconductor surface

Kondratenko

Seebauer

2010

AIChE Journal

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“…The plating apparatus is identical to that in Ref. 6, where the probe contacts the sample outside of the plating bath and does not disturb the electrodeposition of the Ni columns. In our case, Ni is used as the anode and the conductive GaAs substrate is used as the cathode.…”

Section: Methodsmentioning

confidence: 99%

Fabrication and characterization of high aspect ratio perpendicular patterned information storage media in an Al2O3/GaAs substrate

Wong

Scherer

Todorovic

et al. 1999

Journal of Applied Physics

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In a new approach, we have fabricated 6:1 aspect ratio magnetic nanocolumns, 60-250 nm in diameter, embedded in a hard aluminum-oxide/gallium-arsenide (Al 2 O 3 /GaAs) substrate. The fabrication technique uses the highly selective etching properties of GaAs and AlAs, and highly efficient masking properties of Al 2 O 3 to create small diameter, high aspect ratio holes. Nickel ͑Ni͒ is subsequently electroplated into the holes, followed by polishing, which creates a smooth and hard surface appropriate for future reading and writing of the columns as individual bits for high density information storage. We have used magnetic force microscopy and scanning magneto-resistance microscopy to characterize the resulting magnets. We find the columns more magnetically stable than previously achieved with magnets embedded in a SiO 2 substrate. Such stability is necessary before further writing of perpendicular patterned media can be demonstrated.

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“…For example, these materials demonstrated many fascinating properties, such as superior photocatalytic behavior, 6 enhanced luminescence efficiency, 7 and lower lasing threshold 8 and as a result they have practical applications to catalysts, sensors and many other devices such as photonics, nanoelectronics and data storage. [9][10][11][12] Various experimental approaches have been employed to synthesize 1D nanomaterials including chemical vapor deposition (CVD), 13 electrodeposition, [14][15][16] the template self-assembly process, [17][18][19][20] catalytically assisted method, 21 etc. With unique electronic structures and the numerous transition modes involving the 4f shells of their ions, lanthanide compounds have attracted much attention especially due to their optical, electrical and magnetic properties [22][23][24][25][26] and their applications to p-conversion materials, 24 time-resolved fluorescence labels for biological detection, 25 and so on.…”

Section: Introductionmentioning

confidence: 99%

Large‐scale Hydrothermal Synthesis and Characterization of Size‐controlled Lanthanum Hydroxide Nanorods

Yi¹,

Zhang²,

Shi³

et al. 2009

Chin. J. Chem.

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Uniform lanthanum hydroxide nanorods were successfully synthesized in large quantities through a facile hydrothermal synthetic method, in which soluble lanthanum nitrate was used to supply the lanthanum source and triethylamine (TEA) was used as both alkaline agent and complexing agent. The influences of triethylamine amount, surfactant, reaction temperature and time on the size and shape of lanthanum hydroxide nanorods were investigated in detail. Trivalent rare earth ion doped lanthanum hydroxide nanorods were also obtained in this paper. The phase structures and morphologies of the as-prepared products were investigated in detail by X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED) and high-resolution transmission electron microscopy (HRTEM). The probable formation mechanism was proposed based on the experimental results.

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Fabrication and characterization of nanoscale arrays of nickel columns

Cited by 80 publications

References 10 publications

Directed self‐assembly by photostimulation of an amorphous semiconductor surface

Directed self‐assembly by photostimulation of an amorphous semiconductor surface

Fabrication and characterization of high aspect ratio perpendicular patterned information storage media in an Al2O3/GaAs substrate

Large‐scale Hydrothermal Synthesis and Characterization of Size‐controlled Lanthanum Hydroxide Nanorods

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