Regensburg 2019 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 22: Thin Film Applications
DS 22.9: Vortrag
Donnerstag, 4. April 2019, 11:45–12:00, H39
Investigations of the physical properties of lithium-based solid electrolyte thin films in the system Li-P-S-O-N — •Fabian Michel1,3, Martin Becker1,3, Jürgen Janek2,3, and Angelika Polity1,3 — 1I. Institute of Experimental Physics, JLU Gießen, 35392 Gießen — 2Institute of Physical Chemistry, JLU Gießen, 35392 Gießen — 3Center for Material Research (ZfM/LaMa, JLU Gießen, 35392 Gießen
Using the technique of x-ray photoelectron spectroscopy (XPS) the composition of the radio-frequency sputtered lithium-based solid electrolyte thin films was determined. Additional electrochemical impedance spectroscopy (EIS) was performed to gain knowledge about the electrochemical properties especially the ionic conductivity of such films. An optimization of the physical properties, which are important for a battery (ionic conductivity) or electrochromic applications (transmission), was attained by changing the deposition parameters. During this optimization process a maximum in ionic conductivity of about 15.8 µS/cm was found referring to the different composition (sulfur content) and process parameters (ratio between argon and nitrogen flux). Compared with earlier findings of related investigations one can monitor the improvements made.