研究目的
To bring ionic conductors into the field of soft technology by fabricating transparent YSZ films with superior mechanical flexibility on muscovite substrate.
研究成果
Epitaxial YSZ films on muscovite substrate with high crystallinity and excellent mechanical flexibility were successfully fabricated. The heterostructure exhibits superior ionic conductivity and can be bent to a radius of ~10 mm with excellent cyclability and stability, making it a promising candidate for flexible ionic conductors in soft technology.
研究不足
The study focuses on the fabrication and characterization of YSZ films on muscovite substrate. The practical application in devices and the long-term stability under operational conditions are not extensively explored.
1：Experimental Design and Method Selection:
Epitaxial YSZ films were grown on muscovite substrate using pulsed laser deposition (PLD) with an in-situ reflective high-energy electron diffraction (RHEED) to monitor the growth condition in real time.
2：Sample Selection and Data Sources:
Natural muscovite mica was used as the substrate. YSZ films were deposited using a KrF excimer laser.
3：List of Experimental Equipment and Materials:
PLD system, KrF excimer laser, muscovite substrate, YSZ target.
4：Experimental Procedures and Operational Workflow:
The substrate temperature was kept at 650 oC in an oxygen pressure of 1 × 10?6 Torr during the growth. RHEED was used to monitor the growth condition and growth rate in real-time.
5：Data Analysis Methods:
The crystal structure and epitaxial relation were established by synchrotron based X-ray diffraction. Cross-sectional TEM specimen was prepared by focused ion beam technique and examined in a TEM microscope. Electrochemical impedance spectroscopy was carried out to measure the ionic conductivity.
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