| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
A Solution-Processable n-Type Molecular Dopant for Graphene and Organic Semiconductor-Based Electronics |
| 초록 |
The development of the solution-processable organic n-type dopant is important for realizing low-cost organic electronics. In addition, heating-free doping is promising for use in organic flexible electronics. In this study, we developed a simple fabrication method of a high-performance n-type organic dopant. After coating the dopant solution, the organic non-polar solvents are removed using the vacuum at 1 × 10-3 torr without any heating steps. The work function of graphene is changed from 4.5 eV to 3.98 eV after doping at room-temperature. The doping process results in long-term air-stability. Also, by using the doped graphene electrodes, the electrical performance of n-type organic field-effect transistors can be improved because of well-matched energy levels between the electrodes and the semiconductor. Our findings show an important method for the cheap synthesis of n-type dopants and their use for the modulation of characteristics in graphene and organic electronics. |
| 저자 |
김용희1, 이은광2, 백지수1, 오준학3
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| 소속 |
1포항공과대, 2Purdue Univ., 3서울대 |
| 키워드 |
organic cationic dye; n-type organic dopant; organic transistor; graphene transistor
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| E-Mail |
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