| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
(KRICT) 기술이전을 위한 연구 및 개발동향 |
| 제목 |
Synthesis and applications of carbon-based nanomaterials |
| 초록 |
Graphene has been emerged as a fascinating material for future nanoelectronics applications due to their extraordinary electronic properties. Since diversity in electronic structure strongly depends on their geometrical features, major concern has been focused on obtaining the number of layers- or width-controlled graphene. In this presentation, layer-controlled graphene growth on Cu foil was achieved by thermal chemical vapor deposition (TCVD) and their growth mechanism was systematically explored. Additionally, graphene-based hybrid nanomaterials are an interesting issue for multifaceted applications. Recently, there are two requirements for application in zinc oxide (ZnO)-based thin film transistors (TFTs): development of mobility improved and threshold voltage tuned ZnO TFTs. Thus, in order to combine advantages of graphene with extremely high carrier mobility and work function controllability and ZnO thin films with a high on-off ratio, we developed ZnO/graphene and ZnO/metal-decorated graphene oxide flakes hybrid two-dimensional TFTs. Hybrid TFTs exhibited an outstanding electron mobility of 329 cm2/V·s and a high on-off ratio of 105, and their threshold voltage was manipulated. Additionally, graphene nanopatches on graphene films grown by TCVD were formed by spin-coating Ni catalytic nanoparticles and subsequent TCVD growth to enhance the electrical conductivity of the graphene films. As a result, the sheet resistance and optical transmittance of graphene nanopatches/graphene films were 527 Ω/sq at 97.9%. |
| 저자 |
송우석, 김성준, 김성호, 김기웅, 민복기, 명성, 이선숙, 임종선, 안기석
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| 소속 |
한국화학(연) |
| 키워드 |
Graphene; hybrid nanomaterial
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| E-Mail |
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