| 研究実績の概要 |
In this project, the interaction of light with solid-gas interfaces was analyzed. Various experiments with thin films of 3%Gd-dopedCeO2 (GDC, one of the most prominent materials for use in SOFC as electrolyte and part of composite electrodes). It was found out that the electronic structure, especially at the grain boundaries, is fundamentally affected by light above the bandgap. Also, the ionic conductivity is increased by the light, which is an important parameter for mixed ionic electronic conducting electrodes (MIEC). Collaboration with MIT was conducted. Due to the pandemic, only remote meetings were held.
The results found for the increase in ionic conductivity were so outstanding, that further focus was laid on this opto-ionic effect.
|
