| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
Grafting Fluorinated Polymer Nanolayer for Advancing the Electrical Stability of Organic Field-Effect Transistors |
| 초록 |
With the goal of achieving high-performance electrically stable organic field-effect transistors (OFETs), we chemically graft a fluorinated polymer nanolayer onto the polar oxide dielectric surfaces via a simple and easy fabrication process in ambient air. The para-fluorine-thiol click reaction between poly(pentafluorostyrene) (PFS) and mercaptopropyltrimethoxysilane is used to synthesize a graftable fluorinated polymer (gPFS). The surface characteristics of the gPFS-treated SiO2 dielectrics and the crystal structure of the overlying organic semiconductors are investigated. Various semiconductors are employed for the OFETs, including vacuum-processed pentacene, PTCDI-C13, solution-processed TES-ADT, and PDPPDBTE. The OFETs display the highest mobilities and smallest hysteresis. Furthermore, the gPFS-treated SiO2 provides the best device stability under a sustained gate bias, suggesting that the gPFS surface minimize the number of traps present in the OFET |
| 저자 |
김경훈1, 안태규1, 김지예1, 정용진1, 장재영1, 김해경2, 백장열3, 김윤희3, 김세현2, 박찬언1
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| 소속 |
1포항공과대, 2영남대, 3경상대 |
| 키워드 |
fluorinated polymer; grafting polymer; polymer brush; bias stability; ofet
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| E-Mail |
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