Conjugated Polymer Chains Confined in Vertical Nanocylinders of a Block-Copolymer Film: Preparation, Characterization, and Optoelectronic Function

Ban Xuan Dong, Yoshihiro Honmou, Hideaki Komiyama, Shu Furumaki, Tomokazu Iyoda, Martin Vacha

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

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 languageEnglish (US)
Pages (from-to)492-497
Number of pages6
JournalMacromolecular Rapid Communications
Volume34
Issue number6
DOIs
StatePublished - Jan 15 2013
Externally publishedYes

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