Ultrathin organic membranes: Can they sustain the quest for mechanically robust device applications?

Ultrathin polymeric films have recently attracted tremendous interest as func-tional components of coatings, separation membranes, and sensors, with applica-tions spanning from environment-related processes to soft robotics and wear-able devices. In order to support the development of robust devices with advanced performances, it is necessary to achieve a deep comprehension of the mechanical properties of ultrathin polymeric films, which can be significantly affected by confinement effects at the nanoscale. In this review paper, we collect the most recent advances in the development of ultrathin organic membranes with emphasis on the relationship between their structure and mechanical prop-erties. We provide the reader with a critical overview of the main approaches for the preparation of ultrathin polymeric films, the methodologies for the investiga-tion of their mechanical properties, and models to understand the primary effects that impact their mechanical response, followed by a discussion on the current trends for designing mechanically robust organic membranes.

Automated summary

Ultrathin polymeric films have gained significant attention for their functional applications in coatings, separation membranes, and sensors. Understanding their mechanical properties is crucial for developing robust devices with advanced performances. In this review, we highlight the recent advances in ultrathin organic membranes, focusing on the relationship between structure and mechanical properties. We discuss the preparation methods, investigation techniques, and models for understanding the mechanical response, followed by a discussion on designing mechanically robust organic membranes.