| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 봄 (04/12 ~ 04/13, 제주 ICC) |
| 권호 |
32권 1호 |
| 발표분야 |
전자/에너지 재료와 고분자 산업(산학협동위원회) |
| 제목 |
Effect of Self-Assembled Monolayer modified Electrodes on Bottom-Contact Organic Field-Effect Transistors |
| 초록 |
In this study, Au surfaces modified with 1-Decanethiol (DT), Heptadecafluoro-1-decanethiol (HDFDT), Tridecafluoro-1-octanethiol (TDFOT) were characterized by He(I) Ultra-violet photoelectron spectroscopy (UPS). We have tuned the Au work functions by chemically modifying the Au surface through the formation of chemisorbed self-assembled monolayers having electron donating group and electron withdrawing group. The ordering in the SAMs creates an effective, molecular dipole at the metal/SAM interface, which increased the work function of Au (bare Au~4.9 eV) to 5.5~5.7 eV for electron withdrawing group. On the other hand electron donating group shifted work function of Au to 4.1 eV. The hole injection barriers at the pentacene/Au, pentacene/DT/Au, pentacene/HDFDT/Au and pentacene/TDFOT/Au were also determined using in-situ thin film deposition in combination with X-ray and ultraviolet photoelectron spectroscopy at PAL-4B1 beam line. |
| 저자 |
이종원1, 홍기표1, 양상윤2, 신권우3, 박찬언3
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| 소속 |
1포항공대 / 화학공학과, 2포항공대 화학공학과, 3포항공대 화학공학과 |
| 키워드 |
interface; self-assembled monolayer; OFET
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| E-Mail |
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