Space Charges in Metal-Solid Electrolyte-Metal Structures

摘要

The influence of electrodes on the space charge distribution in solid polymer electrolytes has been investigated. Aluminum-poly(ethylene oxide)-aluminum sample structures with varying distance between the metal electrodes are considered. The charge distribution in the poly(ethylene oxide) is extracted by differentiating twice the surface potential measured by the Kelvin Probe Force Microscopy. With this approach, charge oscillations and charge packets have been detected for the first time in solid electrolytes under biased and unbiased conditions.