Abstract:The electrochemical behavior of a solid electrolyte Cu 2 S was investigated using strain imaging. The precipitation or dissolution of Cu in Cu 2 S induces changes in volume. Scanning probe microscopy detects the changes in volume through surface displacements with high resolution, and so, we can observe the extension of redox-induced regions. The Cu filaments grew as the voltages were increased, and finally, a Cu bridge between the upper and lower electrodes was formed. When the Cu bridge was formed, electroch… Show more
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