Charge transport in low-concentration MEH-PPV conjugated polymer/fullerene composites

Charge transport was studied in composites of poly[2-methoxy-5-(2′-ethyl-hexyloxy)- p-phenylene-vinylene] (MEH-PPV) conjugate polymer and low-concentration fullerenes ( C 60) below the percolation threshold. The electron mobility showed a linear increase with the fullerene concentration, to which th...

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Published in:Current applied physics 2009, 9(6), , pp.1315-1317
Main Authors: Lee, K.W., Mo, K.H., Jang, J.W., Kim, N.K., Lee, W., Kim, I.-M., Lee, Cheol Eui
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Language:English
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Charge transport
Low-concentration MEH-PPV/fullerene composites
물리학
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description Charge transport was studied in composites of poly[2-methoxy-5-(2′-ethyl-hexyloxy)- p-phenylene-vinylene] (MEH-PPV) conjugate polymer and low-concentration fullerenes ( C 60) below the percolation threshold. The electron mobility showed a linear increase with the fullerene concentration, to which the hole mobility was insensitive. Our results indicate that fullerene–polymer networks provide a conduction path to the electrons, whereas the holes are transported through the polymer-only paths. The microscopic environments of the two distinct conduction paths in the composites as revealed by the electric field dependence of the mobilities are also discussed.
doi_str_mv 10.1016/j.cap.2008.11.010
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subjects Charge transport
Low-concentration MEH-PPV/fullerene composites
물리학
title Charge transport in low-concentration MEH-PPV conjugated polymer/fullerene composites
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