| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Frontiers of Materials Award Symposium: Nanocarbon-based Flexible Devices: Emerging Materials and Processes
|
| Presentation Title |
Electromechanically Stable Thin Metallic Films Reinforced by Synthesis of a Graphene Wrapper |
| Author(s) |
Sameh Tawfick, Kaihao Zhang, Mitisha Surana , Jad Yaacoub |
| On-Site Speaker (Planned) |
Sameh Tawfick |
| Abstract Scope |
Thin metallic films are important building blocks of electronic devices. However, their use in flexible electronic devices, even when patterned to create elastic compliance, is challenged by their brittle nature. In this work, we use ultrafast chemical vapor deposition recipes to synthesize graphene on palladium thin films in the range of 200-700 nm, where the thin films act as a catalyst for growth, and later as an electronic conductor for flexible electronics. First, we test the intrinsic stiffness, strength and fracture toughness of these graphene-wrapped films (PdGr) using a suspended-strip indentation approach and show an enhancement of 50-100% in these films. Secondly, we perform systematic mechanical behavior testing with in situ electrical resistivity measurement to quantify this enhancement of electrical performance stability. Finally, we perform fatigue mechanical testing on serpentine patterns embedded in elastomers and show simultaneous electromechanical stability enhancement. The enhancement mechanism is under investigation. |
| Proceedings Inclusion? |
Undecided |