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Regensburg 2019 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 8: Interfaces and Thin Films (joint session CPP/DY)

CPP 8.7: Vortrag

Montag, 1. April 2019, 16:45–17:00, H14

Using GISAXS to reveal spatial correlations in the electrochemical nucleation of gold particles — •Gilles Moehl, Philip Bartlett, and Andrew Hector — Chemistry, Southampton University, University Rd, SO17 1BJ, United Kingdom

Gilles E. Moehl, Philip N. Bartlett and Andrew L. Hector Chemistry, University of Southampton, Southampton, SO17 1BJ, UK. Developing the next generation of electronic devices requires the deposition of high-quality functional materials in a controlled fashion in complex structures in order to unleash the true potential of devices such as thermoelectrics, phase change memory (PCM) and infra-red detectors. Within EPSRC programme grant ADEPT *Advanced Devices by ElectroPlaTing* (EP/N035437/1), new techniques and materials are to be developed for that matter. Electrochemical nucleation was generally described theoretically many years ago as a random process, which mainly depends on the deposition rate applied through the set current or potential, resulting in either instantaneous or progressive nucleation. Further development of theory and experiments has shown that the underlying process is just random, but that every newborn nucleus has the potential to influence the evolution of further nucleation steps. In this work, we show how grazing incidence small angle scattering can reveal spatial correlations in seemingly randomly arranged gold particles from electrolytic metal deposition.

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