title: Conjugated polymer chains confined in vertical nanocylinders of a block-copolymer film: preparation, characterization, and optoelectronic function.
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.
authors: Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Ookayama 2-12-1-S8, Meguro-ku, Tokyo 152-8552, Japan.
authors: Ban Xuan
authors: BX
authors: Dong
authors: Yoshihiro
authors: Y
authors: Honmou
authors: Hideaki
authors: H
authors: Komiyama
authors: Shu
authors: S
authors: Furumaki
authors: Tomokazu
authors: T
authors: Iyoda
authors: Martin
authors: M
authors: Vacha
mesh_terms: D004579:Electron Transport; D004581:Electronics / Q000295:instrumentation*; D008027:Light; D049449:Luminescence; D055096:Optical Devices; D011108:Polymers / Q000737:chemistry*
chemical_list: D011108:Polymers