| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
플렉서블 일렉트로닉스와 고분자재료 |
| 제목 |
Enhancement of the field-Effect mobility of poly(3-hexylthiophene)/functionalized carbon nanotube hybrid transistors |
| 초록 |
With the aim of enhancing the field-effect mobility of poly(3-hexylthiophene) (P3HT) field-effect transistors (FETs), we added functionalized multiwalled carbon nanotubes (CNTs) to the P3HT solution prior to film formation. The nanotubes were found to be homogeneously dispersed in the P3HT films because of their functional groups. We found that at the appropriate CNT concentration (up to 10 wt% CNT), the P3HT FETs have a high field-effect mobility of 0.04 cm2V-1s-1, which is an improvement by a factor of more than 10. This remarkable increase in the field-effect mobility over that of the pristine P3HT film is due to the high conductivity of the CNTs which act as conducting bridges between the crystalline regions of the P3HT film, and the reduction in the hole injection barrier due to the low work function of CNTs, which results in more efficient carrier injection. This work was supported the ERC Program of MOST / KOSEF (R11-2003-006-03005-0) |
| 저자 |
박영돈1, 임정아1, 장윤석1, 이화정2, 백종범2, 조길원1
|
| 소속 |
1포항공과대, 2충북대 |
| 키워드 |
field-Effect mobility; poly(3-hexylthiophene); CNT; OFET
|
| E-Mail |
|
