About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Next Generation Biomaterials
|
| Presentation Title |
Dual-Sided Laser-Induced Graphene Microheaters for Biomedical Applications |
| Author(s) |
Collin Richards, Prakriti Dhungana, Byung-Wook Park |
| On-Site Speaker (Planned) |
Collin Richards |
| Abstract Scope |
Thermal management is critical for the development of new wearable devices for thermal treatment. Here, we present fabrication and characterizations of a dual-sided flexible microheater system using laser induced graphene (LIG) heating elements with an electroplated copper heat spreader on the reverse side for thermal management in biomedical applications. LIG patterns were produced via direct laser writing on polyimide substrates using a carbon dioxide laser. The optimized laser speed and power were found to be 33.3 mm s-1 and 4 W, resulting in a 1-cm line resistance of 62.8 Ω cm-1. To enhance lateral heat spreading while maintaining flexibility, the backside of the polyimide substrate was patterned with a square of LIG and subsequently electroplated with a thin copper layer. Deposition conditions were optimized at a current density of 0.225-0.275 mA mm-2, producing a uniform coating with a two-probe line resistance of 9.5 Ω cm-1. |