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首页> 外文期刊>RSC Advances >Synthesis of D-A polymers with a disilanobithiophene donor and a pyridine or pyrazine acceptor and their applications to dyesensitized solar cells
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Synthesis of D-A polymers with a disilanobithiophene donor and a pyridine or pyrazine acceptor and their applications to dyesensitized solar cells

机译：具有二硅烷二噻吩供体和吡啶或吡嗪受体的D-A聚合物的合成及其在染料敏化太阳能电池中的应用

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摘要

New donor-acceptor polymers containing disilanobithiophene (DSBT) as the donor and pyridine or pyrazine as the acceptor with or without a thiophene spacer were prepared. The polymers showed UV-vis absorption maxima at lambda(max) = 488-526 nm, which were red-shifted relative to those of model monomers dithienylpyridine and dithienylpyrazine (lambda(max) = 352-375 nm), indicating the efficient conjugation along the polymer chains. A homo polymer of DSBT was also prepared. The DSBT-containing polymers were attached to TiO2 electrodes by immersing the electrodes in the polymer solutions under irradiation (>400 nm) or in the dark. The modified electrodes were applied to dye-sensitized solar cells and a maximal power conversion efficiency of 0.89% was obtained using the TiO2 electrode thermally modified with a DSBT-pyrazine alternating polymer.
机译：制备了含有二硅氮杂二噻吩（DSBT）作为供体和吡啶或吡嗪作为具有或不具有噻吩间隔基的受体的新的供体-受体聚合物。该聚合物在λ（max）= 488-526 nm处显示出最大的紫外可见吸收，相对于模型单体二噻吩并吡啶和二噻吩并吡嗪（λ（max）= 352-375 nm）而言，它发生了红移，表明沿该方向的有效共轭聚合物链。还制备了DSBT的均聚物。含DSBT的聚合物通过在辐射（> 400 nm）或黑暗中将电极浸入聚合物溶液中而附着到TiO2电极上。将该修饰的电极应用于染料敏化太阳能电池，并且使用经DSBT-吡嗪交替聚合物热修饰的TiO2电极可获得0.89％的最大功率转换效率。

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