| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
나노 |
| 제목 |
A Reduced Organic Cationic Dye as a Solution-Processable n-Type Molecular Dopant for Graphene and Organic Semiconductor-Based Transistors |
| 초록 |
Simple fabrication of solution-based organic n-type dopant is important for low-cost organic electronics. In this work, we found a simple fabrication method of organic n-type dopant using an organic cationic dye and a reducing agent. After coating the reduced pyronin B on graphene film, work function of graphene is reduced from 4.5 eV to 3.98 eV. The work functions were estimated using Ultraviolet photoelectron spectroscopy (UPS). The dopant is effective for graphene field effect transistors and organic field effect transistors. We further show a selective stamp n-type doping using polydimethylsiloxane and the reduced pyronin B on 16 × 16 graphene field effect transistor array in a large array. Our results represent a important method for the solution-phase modulation of electronic performance of graphene and organic electronics. |
| 저자 |
김용희, 이은광, 오준학
|
| 소속 |
포항공과대 |
| 키워드 |
organic cationic dye; organic n-type dopant; organic transistor; graphene transistor
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| E-Mail |
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