More and more flexible, bendable, and stretchable sensors and displays are becoming a reality. While complex engineering and fabrication methods exist to manufacture flexible thin film systems, materials engineering through advanced metallic thin film deposition methods can also be utilized to create robust and long-lasting flexible devices. In this review, materials engineering con-cepts as well as electro-mechanical testing aspects will be discussed for metallic films. Through the use of residual stress, film thickness, or microstructure tailoring, all controlled by the film deposition parameters, long-lasting flexible film systems in terms of increased fracture or deformation strains, electrical or mechanical reliability, can be generated. These topics, as well as concrete examples, will be discussed. One objective of this work is to provide a toolbox with sustainable and scalable methods to create robust metal thin films for flexible, bendable, and stretchable applications.
Bibliographische NotizFunding Information:
Several micrographs were provided by colleagues at the Erich Schmid Institute for Materials Science (ESI), Austrian Academy of Sciences and the Department of Materials Science, Montanuniversit?t Leoben (MUL). We would like to acknowledge their contributions to the manuscript: B. Putz (ESI/MUL), C. Gammer (ESI), B. V?lker (ESI), and O. Glushko (MUL).
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