Low-temperature redox reactions in solids resulting in no thermomechanical degradation can be used to enhance the performance and lifetime of energy devices. Rapid and reversible redox activity has now been demonstrated at temperatures as low as 200 °C in both epitaxially stabilized oxygen-vacancy-ordered SrCoO2.5 and thermodynamically unfavourable perovskite SrCoO3−δ single-crystalline thin films.
- Hyoungjeen Jeen
- Woo Seok Choi
- Ho Nyung Lee