Abstract:
We study the ion transport in the interdisc region of thin-layer cells under square wave electric potential pulses by means of optical and particle velocimetry techniques. Experiments and measurements reveal that ion transport and deposit morphology, that constitute crucial factors in the characteristics of the connection, are substantially influenced by puke frequency. Measurements show that the incubation time is roughly twice of that observed under DC conditions and does not increase with frequency. During this period, migration and diffusion are the dominant transport modes. After branching develops, convection plays a relevant role as well. It is found that the deposit morphology becomes less ramified as frequency increases, while the deposit growth speed is not significantly affected. A remarkable effect is found at low frequencies: the ion transport and the deposit growth pulsate in phase with the electric potential At the scale of the observation (10x), no signs of inertial effects were discerned.
Registro:
| Documento: |
Conferencia
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| Título: | Spatially coupled bipolar elect rodeposition in thin-layer cells under periodic voltage control |
| Autor: | D'Angelo, V.; Marshall, G.; Bradley, J.-C.; Gonzalez, G.; Babu, S.; Molina, F.V.; Iemmi, C. |
| Ciudad: | Washington, DC |
| Filiación: | Departamento de Computation, FCEN, Universidad de Buenos Aires, Argentina
INQUIMAE, FCEN, Universidad de Buenos Aires, Argentina
Departamento de Fisica, FCEN, Universidad de Buenos Aires, Argentina
Drexel University, Department of Chemistry, Philadelphia, PA, United States
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| Palabras clave: | Charge transfer; Dissolution; Electric potential; Electropolymerization; Frequencies; Surface roughness; Voltage control; Bipolar electrodeposition; Particle velocimetry; Spatially coupled bipolar electrochemistry (SCBE); Thin-layer cells; Electrodeposition |
| Año: | 2001
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| Volumen: | 8
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| Página de inicio: | 190
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| Página de fin: | 198
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| Título revista: | Morphological Evolution of Electrodeposits-and-Electrochemical, Processing in ULSI Fabrication, and Electrodepositin of and on Semiconductors IV
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| Título revista abreviado: | Proc. Electrochem. Soc.
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| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS01839_v8_n_p190_DAngelo |
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Citas:
---------- APA ----------
D'Angelo, V., Marshall, G., Bradley, J.-C., Gonzalez, G., Babu, S., Molina, F.V. & Iemmi, C.
(2001)
. Spatially coupled bipolar elect rodeposition in thin-layer cells under periodic voltage control. Morphological Evolution of Electrodeposits-and-Electrochemical, Processing in ULSI Fabrication, and Electrodepositin of and on Semiconductors IV, 8, 190-198.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS01839_v8_n_p190_DAngelo [ ]
---------- CHICAGO ----------
D'Angelo, V., Marshall, G., Bradley, J.-C., Gonzalez, G., Babu, S., Molina, F.V., et al.
"Spatially coupled bipolar elect rodeposition in thin-layer cells under periodic voltage control"
. Morphological Evolution of Electrodeposits-and-Electrochemical, Processing in ULSI Fabrication, and Electrodepositin of and on Semiconductors IV 8
(2001) : 190-198.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS01839_v8_n_p190_DAngelo [ ]
---------- MLA ----------
D'Angelo, V., Marshall, G., Bradley, J.-C., Gonzalez, G., Babu, S., Molina, F.V., et al.
"Spatially coupled bipolar elect rodeposition in thin-layer cells under periodic voltage control"
. Morphological Evolution of Electrodeposits-and-Electrochemical, Processing in ULSI Fabrication, and Electrodepositin of and on Semiconductors IV, vol. 8, 2001, pp. 190-198.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS01839_v8_n_p190_DAngelo [ ]
---------- VANCOUVER ----------
D'Angelo, V., Marshall, G., Bradley, J.-C., Gonzalez, G., Babu, S., Molina, F.V., et al. Spatially coupled bipolar elect rodeposition in thin-layer cells under periodic voltage control. Proc. Electrochem. Soc. 2001;8:190-198.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS01839_v8_n_p190_DAngelo [ ]
