Preparation of dendritic tin nanoaggregates by electrodeposition

Devers, Thierry; Kante, I.; Allam, L.; Fleury, Vincent

doi:10.1016/s0022-3093(03)00091-7

Cited by 20 publications

(16 citation statements)

References 12 publications

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“…Similar observation was made for the case of dendritic tin nanoaggregates, where tin dendrites of the order of 0.1 µm were preceded by the formation of smaller tin grains. [16] One of the important aspects of dendrite growth is the formation of branches. Scanning electron micrograph in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Devers et al studied the electrodeposition operating conditions for the preparation of dendritic tin nanoaggregates composed of small grains of the size 50-100 nm. [16] At lowcurrent density, a uniform carpet of very small tin grains was observed coating the substrate surface. In the high current regime, the formation of dendritic tin aggregates was preceded by the formation of smaller tin grains.…”

Section: Introductionmentioning

confidence: 98%

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Growth of electrodeposited gold on glassy carbon from a thiosulphate–sulphite electrolyte

Sobri

Roy

Aranyi

et al. 2008

Surface & Interface Analysis

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A solution containing thiosulphate and sulphite has been developed specially for microelectronics applications to replace the conventional cyanide-based bath for long-term sustainability of gold electroplating. However, at the end of the electrodeposition process, the spent electrolyte can contain a significant amount of gold in solution. Investigations have been done to study the feasibility of gold recovery from the spent thiosulphate-sulphite electrolyte. In a previous work, flat plate glassy carbon was used to study the initial nucleation mechanism of gold deposition. However, in that study the growth of nuclei or their eventual formation into a gold film was not examined. Here, we present the microscopy observations of crystal growth of gold on glassy carbon at longer deposition times as a function of deposition potentials. It was found that the initial deposition of gold at low-cathodic potential corresponds to an electrochemical diffusion controlled gold discharge from which spherical nuclei are obtained. After a certain time the initial growing nuclei become unstable and the thin gold deposit begins to develop tips, which eventually grow larger and produce dendrites. The dendritic growth is controlled by surface-diffusion limitations of gold.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Growth of electrodeposited gold on glassy carbon from a thiosulphate–sulphite electrolyte

Sobri

Roy

Aranyi

et al. 2008

Surface & Interface Analysis

View full text Add to dashboard Cite

show abstract

“…1a) was partly described in Refs. [8,9]. Here, the cell is composed of two glass plates (microscope slides) separated by foils of copper and tin acting, respectively, as cathode and anode.…”

Section: Methodsmentioning

confidence: 99%

“…Previous studies [8,9] showed that it is possible to obtain very thin polycrystalline, conducting metallic layers (thickness o20 nm) by direct electrodeposition. See Ref.…”

Section: Introductionmentioning

confidence: 99%