1. Rocking disc electro-deposition of copper films on Mo/MoSe2 substrates
- Author
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Cummings, Charles Y., Frith, Paul E., Zoppi, Guillaume, Forbes, Ian, Rogers, Keith D., Lane, David W., and Marken, Frank
- Subjects
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ELECTROFORMING , *THIN films , *MOLYBDENUM compounds , *COPPER compounds , *BUBBLES , *MASS transfer , *THICKNESS measurement , *SOLAR cells , *PHOTOVOLTAIC cells , *ELECTROCHEMISTRY , *TURBULENCE - Abstract
Abstract: A novel electro-deposition method based on a rocking disc system with π/3 amplitude and variable frequency is introduced. Uniform copper films were deposited from a 0.1M CuSO4/3.0M NaOH/0.2M sorbitol bath directly onto 12.1cm2 Mo/MoSe2 substrates with X-ray diffraction showing a thickness variation of ±5% over this area. Investigation of the mass transport conditions suggests (i) uniform diffusion over the sample, (ii) a rate of mass transport proportional to the square root of the rocking rate, and (iii) turbulent conditions, which are able to dislodge gas bubbles during electro-deposition. [Copyright &y& Elsevier]
- Published
- 2011
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