| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
Controlled growth of multilayered graphene at catalyst-substrate interface without intentional carbon feeding |
| 초록 |
Preparation scheme of graphene has played a critical role to determine both cost and functional efficiency of graphene-based transparent/flexible devices. Unfortunately, conventional processes cannot escape from drawbacks including deleterious transferring and carbon source control. We demonstrate novel synthesis of multilayered graphene and its patterning directly at a designed interface between catalyst and substrate employing a tube furnace without intentional carbon feeding. Carbon atoms are supplied from impurities incorporated into the nickel catalyst that has significant solubility for exotic species. Intra-catalyst carbon atoms migrate along the grain boundaries resulting in atom piling up at the interface, thereby nucleating and growing the graphene crystals. Importantly, only pattering the catalyst guarantees the cloned patterned graphene directly on the substrate. Resultant graphene is analyzed multilaterally to identify the successful formation of multilayered graphene. |
| 저자 |
김원준1, 강동석2, 임정아1, 송용원1
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| 소속 |
1한국과학기술(연), 2Univ. of Southern California |
| 키워드 |
Graphene; Carbon; Interlayer
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| E-Mail |
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