| 세션명 | Graduate Student Oral Session (I) (English) |
|---|---|
| 발표장 | 301호 |
| 논문코드 | 1O12-13 |
| 발표일 | 2019-10-10 |
| 발표시간 | 16:40-16:55 |
| 논문제목 | Hierarchical Thermochromic Nanoscale Crack-Based Sensor |
| 발표자 | 박병학 |
| 발표자 소속 | 성균관대학교 |
| 저자 | 박병학, 김태일1,† |
| 소속 | 성균관대학교; 1성균관대 화학공학과 |
| 논문초록 | As eidetic signal recognition has become important, displaying mechanical signals visually has imposed huge demands for simple readability and without complex signal processing. Accordingly, thermo- and electronic-chromic materials are considered to facilitate the visualization with multiple colors and simple process, yet the response and recovery time is very long. Here, the simple visualization of low strain ≈2%, with ultrasensitive crack-based strain sensors, which we developed before, with a hierarchical thermochromic layer is suggested. The sensor shows a gradient color change from red to white color in each strain, which is attributed to the hierarchical property, and the thermal response (recovery) time is dramatically minimized within ＜0.6 s from 45 to 37 °C, as the hierarchical membrane is inspired by termite mounds for efficient thermal management. The color changes can be delicately monitored in biomedical application with high accuracy by software on a mobile phone. |
THE POLYMER SOCIETY OF KOREA