| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ,Ⅱ |
| 제목 |
A combined spectroscopic investigation of charge trapping mechanism in polymer semiconducotrs for high operational stablity of polymer field-effect transistors. |
| 초록 |
Overcoming the low operational stability in conjugated polymer semiconductors is imperative to approach the realization of their deployment in technologically relevant applications. Although an in-depth understanding of the trapping mechanism is essential to solving such a problem, the complex nature of trapping phenomena involving multiple origins has proven to be a more difficult task. In this poster, combinatorial understanding on charge trapping mechanism for operational instability was revealed by monitoring the device properties and density of state spectrum under bias stress in cooperation with photo-excited charge de-trapping upon incident photons; the electrochemical reaction within the void of polymer semiconductors produce the trapping states and such reaction is independent to the reaction on an insulator surface. We also show that molecular design guide to suppress operational instability in polymer semiconductors. |
| 저자 |
박상식, 김승현, 조길원
|
| 소속 |
포항공과대 |
| 키워드 |
charge transport; charge trapping; organic semiconductor
|
| E-Mail |
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