| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
유기반도체 재료 및 소자 |
| 제목 |
Improved charge carrier injection and morphology in bottom-contact pentacene field-effect transistors with thiol-treated electrodes |
| 초록 |
We have fabricated bottom-contact pentacene-based organic field effect transistors (OFETs) by using thiol SAMs to investigate the effect of hole injection barriers at interface between the metal electrode and the vacuum deposited pentacene films on the performances of OFETs. We have demonstrated a correlation between hole injection barriers at the metal/OSC interface and device parameters such as mobility, threshold voltage and sub-threshold swing. As tuning OFET electrodes with partially fluorinated alkanethiol SAM, bottom-contact OFET device performance was dramatically improved. We have also found that the different pentacene film morphology between bare Au electrodes and SAM-treated Au electrodes on the side slope and the upper surface of the electrodes was another important factor on the device performance of OFETs. |
| 저자 |
이종원1, 홍기표1, 김세현1, 양상윤2, 박찬언3
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| 소속 |
1포항공과대, 2Cornell Univ., 3Materials Science and Engineering |
| 키워드 |
OFET; SAM; Interfaces
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| E-Mail |
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