Details of Grant 

EPSRC Reference:	GR/S29690/01
Title:	Kinetic roughening of electrodeposited thin films
Principal Investigator:	Schwarzacher, Professor W
Other Investigators:
Researcher Co-Investigators:
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Department:	Physics
Organisation:	University of Bristol
Scheme:	Standard Research (Pre-FEC)
Starts:	01 November 2003	Ends:	31 October 2006	Value (£):	93,886
EPSRC Research Topic Classifications:	Materials Characterisation
EPSRC Industrial Sector Classifications:	Manufacturing
Related Grants:
Panel History:	Panel Date Panel Name Outcome 10 Dec 2002 Structural Prioritisation Panel (Tech) Dec 02 Deferred
Summary on Grant Application Form
Scaling analysis shows that it is possible to describe the roughness of electrodeposited thin Cu films of arbitrary thickness at any length scale using only 5 parameters. Earlier experiments showed that two of these parameters are universal, while two more may be derived from measurements of a single film. The remaining exponent, beta-local, is in many ways the most interesting, as it is associated with anomalous scaling (1). We believe that the combination of careful experiments under well-determined hydrodynamic conditions and numerical modelling will enable us to predict beta-local, and at the same time answer one of the longest-standing questions in electrodeposition, namely precisely how mass transport in the electrolyte affects the surface roughness. Further work will be carried out to relate other scaling parameters to e.g. overpotential and crystallite size, while experiments on additional systems will establish the extent to which results can be generalized to different electrolytes and different metals.(1) S. Huo and W. Schwarzacher, Phys. Rev. Lett. 86, 256 (2001).
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