1. Energy Conversion Research Center, Electrical Materials Research Division, Korea Electrotechnology Research Institute (KERI), Changwon 51543, South Korea
2. Department of Computational Materials Science, Materials Processing Innovation Research Division, Korea Institute of Materials Science (KIMS), Changwon 51508, South Korea
3. German Aerospace Center (DLR), Institute of Materials Research, Cologne 51170, Germany
4. Institute of Inorganic and Analytical Chemistry, Justus Liebig University, Giessen 35392, Germany