About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
2020 Technical Division Student Poster Contest
|
Presentation Title |
SPG-8: Additive Manufacturing of Transparent, Stretchable and Strain-insensitive Touch Sensing Matrix |
Author(s) |
Dace Gao, Jiangxin Wang, Kaixuan Ai, Jiaqing Xiong, Shaohui Li, Pooi See Lee |
On-Site Speaker (Planned) |
Dace Gao |
Abstract Scope |
For next-generation soft electronics, it's essential to develop transparent and stretchable touch sensors with robust sensing performance under deformation. The implementation of advanced fabrication processes, typically additive technologies, is pivotal for such sensors to achieve high-yield mass production and commercialization. In this contribution, we report on the additive manufacturing of a highly transparent, elastic touch sensing matrix via directly inkjet printing ionic conductors onto silicone elastomer substrates. Cross-grid electrodes with favorable ionic conductivity are patterned at microscale resolution adopting the coplanar "interlocking diamond" layout, wherein each intersection constitutes a picofarad-level capacitor that project electric field outwards to sense the approach of a finger. The sensor delivers c.a. 45% sensitivity to light touch, captures objects in proximity, and significantly suppresses strain-induced noise signals. Gesture recognition and multi-touch detection are realized by circuitry design, rendering the matrix a reliable and versatile touch sensing interface even under dynamically deformed conditions. |
Proceedings Inclusion? |
Undecided |