| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
대학원생 구두발표(영어발표) |
| 제목 |
The Origin of Conductivity Enhancement of Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) Films through Polar Solvent Treatment |
| 초록 |
We investigated the mechanism of a 500-fold conductivity enhancement in poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as induced by the addition of a polar solvent and a solvent bath treatment. The transport, optical, and structural analyses indicate that the initial conductivity enhancement from 2 to 700 S/cm is due to the insulator-to-metal transition by an enhanced π-π coupling of the conducting PEDOT:PSS layers with the change in transport mechanism from quasi-2D variable range hopping to fluctuation-induced tunneling, which originates from improved structural ordering by the addition of a polar solvent. Further conductivity enhancement from 700 to 1000 S/cm with additional solvent bath treatment was attributed to an increase in the carrier concentration by a reduction in the sample’s PSS content. |
| 저자 |
김나라, 이병훈, 최두환, 김근진, 김희주, 김재령, 이종진, 강영호, 이광희
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| 소속 |
광주과학기술원 |
| 키워드 |
PEDOT:PSS; conducting polymer; transparent electrode; solvent treatment
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| E-Mail |
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