| 학회 | 한국재료학회 |
| 학술대회 | 2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 | 26권 1호 |
| 발표분야 | G. 나노/박막 재료 분과 |
| 제목 | Fabrication of Large-area Transparent Heater using Reduced Graphene Oxide with Mesh patterning |
| 초록 | Recently, flexibility and stretchability are most demanded properties for optoelectronic device applications. One of the candidates as alternative transparent conductive films for indium tin oxide, is graphene. Among reported graphene synthesis methods, reduced graphene oxide (rGO) through liquid-phase exfoliation process has advantages of low-cost, mass production, and large-scale production. However, rGO-based film is still challenging, because of its high resistance from huge amounts of defects on the basal plane of graphene, which were originated from harsh GO synthesis procedure. Also, during coating process of rGO, trade-off relationship between transparency and resistance makes it hard to achieve both high transparency (＞70%) and low resistance (＜1kΩ/sq) simultaneously. In this research, we fabricated various types of mesh patterned rGO heater by combining patterning with lift-off process and spray coating process. The fabrication process is suitable for making flexible devices using polymer substrate because there is no high-temperature treatment over 200℃ in the whole process. The temperature of the mesh patterned rGO heater rose to 41.6℃ within one minute under 0.15W of power with 72% transparency. It showed the rGO mesh heater has sufficient performance for defrosting. |
| 저자 | Hae-in Moon1, Young Won Kim2, Seung Geun Jo1, Yeon Wook Jung2, Taeseob Lim1, Gil Ryeong Park2, Yujin Shin1, Jung Woo Lee2 |
| 소속 | 1Department of Materials Science and Engineering, 2Pusan National Univ. |
| 키워드 | <P>reduced graphene oxide(rGO); large-area; mesh structure; transparent heater; photolithography</P> |
