| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 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 |
Conducting polymer; PEDOT:PSS; Conductivity; Solvent treatment
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| E-Mail |
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