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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >Low band gap dithienogermolodithiophene copolymers with tunable acceptors and side-chains for organic solar cells
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Low band gap dithienogermolodithiophene copolymers with tunable acceptors and side-chains for organic solar cells

机译：具有可调节受体和侧链的低带隙二噻吩并二氟噻吩共聚物，用于有机太阳能电池

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摘要

We report the synthesis and characterisation of five new donor-acceptor type co-polymers based on a fused dithienogernfiolodithiophene unit for use in photovoltaic devices. The influence of three electron deficient co-monomers, as well as the length and variety of the solubilising side-chains, on the physical and optoelectronic properties of the polymers is reported. The number and variety of alkyl side-chains is found to have a significant impact on the polymer aggregation and film morphology, with larger and more bulky side-chains leading to improved solubility and molecular weight. The influence of these properties upon the performance of bulk heterojundion solar cells is shown.
机译：我们报告了基于熔融二噻吩并氟二噻吩单元的五个新的供体-受体型共聚物的合成和表征，用于光伏器件。报道了三种电子不足的共聚单体以及可溶侧链的长度和种类对聚合物的物理和光电性能的影响。发现烷基侧链的数量和种类对​​聚合物聚集和膜形态具有显着影响，更大且更大体积的侧链导致改善的溶解度和分子量。显示了这些性质对整体异质结太阳能电池性能的影响。

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