Conjugated polymer chains confined in vertical nanocylinders of a block-copolymer film: preparation, characterization and optoelectronic function.
Conjugated polymer chains confined in vertical nanocylinders of a block-copolymer film: preparation, characterization and optoelectronic function.
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嵌段共聚物薄膜垂直纳米圆柱内的共轭聚合物链：制备、表征和光电功能。
DOI：
10.1002/marc.201200766
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
T. Iyoda and M. Vacha
中科院分区：
文献类型：
--
作者：
4.B. X. Dong;Y. Honmou;H. Komiyama;S. Furumaki;T. Iyoda and M. Vacha
制备了由分相嵌段共聚物膜和苯乙烯族共轭聚合物(PPV)组成的杂化材料。在嵌段共聚物膜中，PPV链被嵌入在纳米直径的垂直圆柱体中。圆柱体连续跨越70 nm的整个薄膜厚度。将PPV链引入到一维圆柱体中，导致了光致发光光谱的修正和较大的吸收各向异性。在一个简单的发光器件中，杂化薄膜在微小的掺杂浓度下表现出来自PPV链的电致发光，并且还显示出沿单个PPV链的电子传输效率提高了19倍。
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.