Filling of mesoporous silicon with copper by electrodeposition from an aqueous solution

Fukami, Kazuhiro; Tanaka, Yūki; Chourou, Mohamed L.; Sakka, Tetsuo; Ogata, Yukio H.

doi:10.1016/j.electacta.2008.10.024

Cited by 69 publications

(64 citation statements)

References 17 publications

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“…In recent reports [6][7][8], we studied the electrodeposition of noble metals Pt, Pd, and Au into ordered macroporous Si and those of Cu into mesoporous Si. However after the investigations, we could not uniformly fill Au into the macroporous template.…”

Section: Introductionmentioning

confidence: 99%

Gold electrodeposition into porous silicon: Comparison between meso‐ and macroporous silicon

Chourou

Fukami

Sakka

et al. 2010

Phys. Status Solidi C

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We report the fabrication and characterization of porous Si templates for electrodeposition of Au high aspect ratio nanostructures. The templates with ordered and controlled pore size, 4 µm and 50 nm in diameter, were created through Si etching. Electrodeposition of Au into macroporous Si and into mesoporous Si was investigated. The different morphologies of deposits depending on the Si type and pore size were compared and discussed. The morphology and structural characteristic of the fabricated nanostructures were analyzed using scanning electron microscopy. The micrographs confirm that the deposition parameters have a strong influence on morphology of the structures. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Section: Introductionmentioning

confidence: 99%

Gold electrodeposition into porous silicon: Comparison between meso‐ and macroporous silicon

Chourou

Fukami

Sakka

et al. 2010

Phys. Status Solidi C

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“…17 Nanostructured porous silicon (NPSi) formed by photoelectrochemical etching 18 has emerged among the functional porous semiconductors, whether as a gas sensor, 19 a photoluminescent probe, 20 or as a therapeutic agent through near infrared irradiation. 21 Furthermore, nanoparticles can be infiltrated into NPSi, thus imparting additional properties to the resulting hybrid system (magnetic metals in NPSi for designing storage devices, 22 or high conductivity transition metals for electronic contacts 23 ). In this work, Co-infiltrated NPSi particles are prepared with the aim of providing multifunctional magnetic/fluorescent materials with a PEG coat.…”

Section: Introductionmentioning

confidence: 99%

Hybrid luminescent/magnetic nanostructured porous silicon particles for biomedical applications

et al. 2011

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Abstract. This work describes a novel process for the fabrication of hybrid nanostructured particles showing intense tunable photoluminescence and a simultaneous ferromagnetic behavior. The fabrication process involves the synthesis of nanostructured porous silicon (NPSi) by chemical anodization of crystalline silicon and subsequent in pore growth of Co nanoparticles by electrochemically-assisted infiltration. Final particles are obtained by subsequent sonication of the Co-infiltrated NPSi layers and conjugation with poly(ethylene glycol) aiming at enhancing their hydrophilic character. These particles respond to magnetic fields, emit light in the visible when excited in the UV range, and internalize into human mesenchymal stem cells with no apoptosis induction. Furthermore, cytotoxicity in in-vitro systems confirms their biocompatibility and the viability of the cells after incorporation of the particles. The hybrid nanostructured particles might represent powerful research tools as cellular trackers or in cellular therapy since they allow combining two or more properties into a single particle. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

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“…Electrodeposition can be used to plate curved surfaces and even inside of topologically demanding surfaces. The ability of electrodeposition to fill nano-scale features in a directed manner, that is, at, and only at, predefined locations in complex devices, is exploited in the Damascene process for the production of 20-nm width Cu interconnects within integrated circuits (ICs) (2,3). Whilst the mass production of these small-scale features on an industrial-scale is impressive, in a research environment it is possible to electrodeposit materials on a significantly smaller-scale.…”

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confidence: 99%

“…Electrochemical studies in scNH 3 provided a route to probing the reactions, mechanisms and kinetics of the solvated electron at elevated temperatures. However, industrial applications of these approaches suffer from the aggressive nature of scH 2 O and scNH 3 , and attaining their high critical parameters.…”

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confidence: 99%

“…Nevertheless, there are relatively few examples of electrochemistry in SCFs. Studies that are performed in SCFs tend to focus on fundamental measurements in the so-called ''active'' SCFs, for example, H 2 O or NH 3 . Thus, there is considerable interest in understanding electrochemical corrosion mechanisms in scH 2 O due to the use of supercritical and near-critical water as a coolant in nuclear reactors.…”

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confidence: 99%

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Electrodeposition of metals from supercritical fluids

Howdle

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

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Electrodeposition is a widely used materials-deposition technology with a number of unique features, in particular, the efficient use of starting materials, conformal, and directed coating. The properties of the solvent medium for electrodeposition are critical to the technique's applicability. Supercritical fluids are unique solvents which give a wide range of advantages for chemistry in general, and materials processing in particular. However, a widely applicable approach to electrodeposition from supercritical fluids has not yet been developed. We present here a method that allows electrodeposition of a range of metals from supercritical carbon dioxide, using acetonitrile as a co-solvent and supercritical difluoromethane. This method is based on a careful selection of reagent and supporting electrolyte. There are no obvious barriers preventing this method being applied to deposit a range of materials from many different supercritical fluids. We present the deposition of 3-nm diameter nanowires in mesoporous silica templates using this methodology.electrochemistry ͉ nanomaterials

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Filling of mesoporous silicon with copper by electrodeposition from an aqueous solution

Cited by 69 publications

References 17 publications

Gold electrodeposition into porous silicon: Comparison between meso‐ and macroporous silicon

Gold electrodeposition into porous silicon: Comparison between meso‐ and macroporous silicon

Hybrid luminescent/magnetic nanostructured porous silicon particles for biomedical applications

Electrodeposition of metals from supercritical fluids

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