| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 가을 (10/11 ~ 10/13, 제주컨벤션센터) |
| 권호 |
42권 2호 |
| 발표분야 |
대학원생 구두발표(영어발표, 발표15분) |
| 제목 |
Nano-Confined Organic Semiconductors and Their Electrical Doping for Stable and Efficient Optoelectronic Applications |
| 초록 |
Organic semiconductor thin films with dramatically enhanced charge mobility were realized by exploiting nanoconfinement followed by solution doping. We fabricated nanopillar, nanocone of different conducting polymers with different chemical structure and crystallinity based on patterning with soft PFPE templates. GIWAXS showed the changes in both chain orientation and crystallinity depending on the degree of confinement, which are grossly different from bulk crystallinity of conducting polymers. Because of the increased crystallinity by the nanoconfinement, those nanopillars showed more than 10 times higher conductivity than the equivalent bulk films. We also noted that doping on those nanostructured films further increased the conductivity 40 ~ 50 times relative to the bulk films. Those nanostructured organic semiconductors were used for optoelectronic applications. It has shown the 50 % increase in device performance and also endured harsh thermal conditions, up to 200 ℃, for 4 hrs. |
| 저자 |
고종국1, 송지연1, 윤현식2, 이창희1, 차국헌1
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| 소속 |
1서울대, 2서울과학기술대 |
| 키워드 |
organic semiconductor; nanoconfinement; electrical doping
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| E-Mail |
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