Water-soluble hexagonal BaAl2O4 as sacrificial layer for freestanding crystalline membranes and flexible devices

Key Points

• Water-soluble hexagonal BaAl2O4 demonstrates effectiveness as a sacrificial layer, supporting flexible device development.
• The new material allows for the creation of freestanding crystalline membranes, essential for advanced applications.
• Characterization using specific techniques showcases the stability and compatibility of BaAl2O4 in various settings.
• These findings have potential implications in electronics and optoelectronics, where flexibility and durability are crucial.