| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Spontaneous doping at the polymer-polymer interface for high-performance organic transistors |
| 초록 |
We report a new functionality of the fluorinated low-k polymer dielectrics, which is spontaneous p-doping at the dielectric-semiconductor interface in OFETs. This functionality makes the ambipolar charge transport a unipolar p-type. In the OFETs based on indacenodithiophene-co-benzothiadiazole (IDT-BT) and diketopyrrolopyrrole-thieno[3,2-b]thiophene (DPPT-TT), the charge transport is obviously ambipolar when paired with common polymer dielectrics such as poly(methyl methacrylate); however, it is perfectly modulated to the unipolar p-type by applying the fluorinated dielectrics of CYTOP and polytetrafluoroethylene (Teflon). We propose that this modulation of charge transport results from the well-arranged C-F bonds at the interface between the fluorine-containing dielectrics and the conjugated polymer semiconductors. This study reveals a new functionality of the fluorinated dielectrics for future organic electronics. |
| 저자 |
신은솔1, 박원태1, 권영완2, Xu Yong1, 노용영1
|
| 소속 |
1동국대, 2고려대 |
| 키워드 |
Organic field effect transistors; fluorinated low-k gate dielectric; doping effect; amorphous polymer; charge carrier transport
|
| E-Mail |
|
