| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Microstructural Engineering of Multidirectional Electronic Skins with Tailoring Force Sensitivity and Selectivity |
| 초록 |
Electronic skins with high sensitivity to multidirectional mechanical stimuli are crucial for healthcare/wearable devices. Here, we present piezoresistive e-skins with tunable force sensitivity and selectivity to multidirectional forces through engineered microstructure geometries (dome, pyramid, and pillar). Depending on the microstructure geometry, distinct variations in contact area and localized stress distribution are observed under different mechanical forces, which critically affect the force sensitivity, selectivity, response/relaxation time, and mechanical stability of e-skins. Microdome structures present the best force sensitivities for normal, tensile, and bending stresses. On the other hand, micropillar structures exhibit the highest sensitivity for shear stress. As a proof-of-concept demonstration for potential applications in healthcare monitoring, we show that our e-skins can precisely monitor acoustic waves, breathing, and human artery/carotid pulse pressures. |
| 저자 |
박종화1, 김진영1, 홍재형2, 이호찬1, 이영오1, 조승세1, 김성우3, 김재준3, 김성엽2, 고현협1
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| 소속 |
1울산과학기술원 에너지공학과, 2울산과학기술원 신소재공학과, 3울산과학기술원 전기및전자공학과 |
| 키워드 |
탄소나노튜브; 전도성 복합 소재; 인공전자피부; 촉각센서
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| E-Mail |
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