Al3+ based solid electrolytes for electrochromic applications.

Autor: Mak, Ali Kemal, Tuna, Öcal, Türküz, Seniz, Öztürk, Osman, Karabulut, Mevlüt
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Zdroj: Journal of Materials Science; Aug2023, Vol. 58 Issue 31, p12736-12746, 11p, 1 Color Photograph, 2 Diagrams, 2 Charts, 5 Graphs
Abstrakt: The solid-state electrolytes have attractive properties for electrochromic (EC) devices and battery industries. Li+ ion is the most applied and investigated carrier ion in this field together with less commonly ions Mg2+, Na+ H+ and Al3+. In this study, we have investigated Al3+ solid electrolytes for WO3 based EC devices as alternative to Li+ ions. We have fabricated a series of AlSiOx thin films by applying different target powers of 0–15 W by magnetron sputtering method. The resulting films were characterized by Grazing incidence X-ray diffraction, atomic force microscopy, scanning electron microscopy, energy disperse spectroscopy, ultraviolet–visible-infrared spectrophotometer, X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy (EIS). All samples showed high transparency in the visible range (~ 90%) while the transparency decreased about 10% in the near infrared region. Analysis of EIS data by Kramers–Kronig and Voigt models showed that some of the films have good ionic conductivity. The ionic conductivities of films grown with 10 W, 13 W and 15 W Al target powers were 1.54 × 10–6, 5.68 × 10–7 and 2.72 × 10–8 S/cm, respectively. The results indicate that AlSiOx solid electrolytes are promising for EC applications. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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