The synthesis and characterization of two tetramers based on the functionalization of a central pentaerythritol σ-linker with push–pull chromophores is reported herein. Prepared in only few steps, these original molecules exhibit interesting optical and electrochemical properties. Moreover, once evaluated as donor materials, promising power conversion efficiencies of 4.5% were reached when blended with the [6,6]-phenyl-C₇₁-butyric acid methyl ester (PC₇₁BM) in bulk heterojunction solar cells.

中文翻译：

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基于季戊四醇的推挽四聚体，用于有机光伏

本文报道了基于中央季戊四醇σ-接头与推挽生色团功能化的两种四聚体的合成和表征。这些原始分子仅需几个步骤即可制备，展现出令人感兴趣的光学和电化学特性。此外，一旦作为供体材料进行评估，当与块状异质结太阳能电池中的[6,6]-苯基-C _71-丁酸甲酯（PC ₇₁ BM）混合时，有望实现4.5％的功率转换效率。