About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Nucleation of Solid-State Phase Transformations
|
| Presentation Title |
P1-28: Structure Influenced Rapid Hydrogenation Using Metal-acid Contacts on Crystallographically Oriented VO2 Thin Films |
| Author(s) |
Komal Mulchandani, Ankit Soni, Krushna R Mavani |
| On-Site Speaker (Planned) |
Komal Mulchandani |
| Abstract Scope |
We report on the structure influenced hydrogenation via metal-acid contact method using novel detachable electrode-like design of metal on the edges of VO2 thin films. As temperature increases, VO2 shows the insulator to metal transition accompanied by a structural phase transition from monoclinic to rutile phase. The said method for hydrogenation is tested at different temperatures. A rapid diffusion rate of hydrogen is indicated by a drastically reduced room temperature resistance of the films hydrogenated at elevated temperatures. Moreover, when cooled down to room temperature, these films incline to partially retain a stable rutile phase. The process of hydrogenation becomes much faster and more effective when VO2 acquires the rutile phase i.e. at elevated temperature. |