| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Processing and Kinetic Phenomena: From Thin Films and Micro/Nano Systems to Advanced Manufacturing
|
| Presentation Title |
Ambient-controlled Solid-State Dewetting of Copper and Nickel Thin Films |
| Author(s) |
Misong Ju, Yoon Ah Shin, Maxwell L'Etoile, Baoming Wang, Carl Thompson, Dohee Kim, Jihun Oh |
| On-Site Speaker (Planned) |
Misong Ju |
| Abstract Scope |
Solid-state dewetting (SSD) has been explored as a low-cost way to make complex and controlled nanostructures. Here we report SSD behaviors of copper and nickel thin films, which are important in electronic, magnetic, and catalytic applications, and show that significantly different energy-minimizing Winterbottom shapes result under different ambient conditions. These differences reflect changes in the relative values of surface energies as a function of their crystallographic orientation, and of the facets that develop on dewetted structures. The effects of these changes on morphological evolution during SSD were studied using polycrystalline and lithographically-patterned single-crystal (100) and (110) copper and nickel films annealed in hydrogen or carbon monoxide. The choice of annealing ambient is shown to be a useful tool in controlling both the dewetting process and the faceted shapes that result from SSD. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Copper / Nickel / Cobalt, |