About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Biomaterials and Implants
|
| Presentation Title |
Biodegradable magnesium silicide thin film as a narrow bandgap semiconductor platform for transient electronics |
| Author(s) |
Ki-Hyun Kim, Ji-Woo Gu, Chi-Hwan Lee, Seung-Kyun Kang |
| On-Site Speaker (Planned) |
Ki-Hyun Kim |
| Abstract Scope |
Transient electronics reduce electronic waste and enable temporary biomedical implants that disappear after use. However, most biodegradable semiconductors possess wide bandgaps, limiting energy-harvesting and optoelectronic functions. Here, we present magnesium silicide (Mg₂Si) thin films as a biodegradable narrow-bandgap semiconductor platform. The annealed films exhibited n-type behavior and an indirect bandgap of approximately 0.84 eV, enabling near-infrared operation. Mg₂Si thin films were integrated into biodegradable thermoelectric energy harvesters and near-infrared photosensors, demonstrating stable operation while retaining transient characteristics.
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Science and ICT (MSIT) (RS-2025-00561988) and by the Ministry of Trade, Industry and Energy (MOTIE) and the Korea Institute for Advancement of Technology (KIAT) through the International Cooperative R&D Program (Grant No. P0028319-G02P24680020111-10054408). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electronic Materials, Biomaterials, Energy Conversion and Storage |