Quasiperiodic behavior in the electrodeposition of Cu/Sn multilayers: extraction of activation energies and wavelet analysis
This work reports the observation of quasiperiodic behavior during the oscillatory electrodeposition of Cu/Sn multilayers. By employing a wavelet transform on the current from the time-series, and by varying the temperature, it was possible to extract two apparent activation energies from the oscill...
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| Main Authors: | , , , |
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| Format: | Online |
| Language: | Portuguese |
| Published: |
Universidade Estadual de Campinas
2019
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| Subjects: | |
| Online Access: | https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/2635 |
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| Summary: | This work reports the observation of quasiperiodic behavior during the oscillatory electrodeposition of Cu/Sn multilayers. By employing a wavelet transform on the current from the time-series, and by varying the temperature, it was possible to extract two apparent activation energies from the oscillation frequencies, of two different domains: one believed to be mainly activation limited (near 50 kJ/mol), extracted from a higher frequency oscillation, and one thought to be mainly diffusion limited (near 20 kJ/mol), extracted from a lower frequency oscillation. These energies are comparable to those calculated using current values from the cyclic voltametry in different temperatures. |
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| ISSN: | 2596-1969 |
