| 학회 | 한국재료학회 |
| 학술대회 | 2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 | 27권 2호 |
| 발표분야 | A. 전자/반도체 재료 분과 |
| 제목 | Development of stretchable conductive composite with internal structure using hydrophilic solution |
| 초록 | Stretchable electrodes are the most essential components of next generation devices such as IoT, Smart home healthcare, and wearable device. Stretchable electrodes should be highly conductive, durable under repetitive stretching and have a small rate of change in resistance even with elongation. Most conventional electrodes are use a structure such as serpentine, mesh, and buckle to reduce the resistance change. These structures alleviate the stress applied to the electrode when the electrode is stretched due to each shape, and the length of the electrode does not change, thereby minimizing the rate of change of resistance. however, structures such as serpentine, mesh, and buckle have the disadvantage of not being highly integrated by lowering the degree of integration because a lot of space must be used to create a free space. Therefore, in this study, a conductive composite material having a structure inside the material was developed to overcome the disadvantages of such structuring. The conductive composite made by adding a hydrophilic material has a porous structure inside the material, so it has a higher degree of integration compared to the existing structured electrode, and has a porous structure inside the electrode, so its modulus is lower than in bulk. The internal conductive pathway is formed in a shape according to the shape of the pore rather than a straight line, reducing the stress applied during stretching and minimizing the change in resistance. The optimized reliability electrode stably maintained its electrical properties for 10,000 cycles at ε = about 0.5 strain. Using this composites material, it has been demonstrated that it can be used as a stretchable electronic. |
| 저자 | 박정환, 정성묵, 이수연, 김태수, 최영민 |
| 소속 | 한국화학(연) |
| 키워드 | stretchable; conductor; electrode; structure; pore; porous |
