Abstract
Hybrid materials composed of phase-separated block copolymer films and conjugated polymers of the phenylenevinylene family (PPV) are prepared. The PPV chains are embedded in vertical cylinders of nanometer diameter in the block-copolymer films. The cylinders span continuously the whole film thickness of 70 nm. Incorporation of the PPV chains into the one-dimensional cylinders leads to modified photoluminescence spectra and to large absorption anisotropy. The hybrid films show electroluminescence from the PPV chains in a simple light-emitting device at minute doping concentrations, and also exhibit a factor of 19 increase in electron transport efficiency along the single PPV chains. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original language | English (US) |
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Pages (from-to) | 492-497 |
Number of pages | 6 |
Journal | Macromolecular Rapid Communications |
Volume | 34 |
Issue number | 6 |
DOIs | |
State | Published - Jan 15 2013 |
Externally published | Yes |
Bibliographical note
KAUST Repository Item: Exported on 2020-10-01Acknowledgements: The authors thank Dr. Satoshi Habuchi (currently at KAUST, Saudi Arabia) for helpful discussions. This work was supported by research grant of the Ogasawara Foundation for the Promotion of Science & Engineering and by Grant-in-Aid for Scientific Research No. 23651107 of the Japan Society for the Promotion of Science (MV).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.