Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
J Am Chem Soc. 2013 Aug 21;135(33):12168-71. doi: 10.1021/ja403624a. Epub 2013 May 28.
Poly(p-phenylene vinylene) derivatives (PPVs) are one of the most widely investigated p-type polymers in organic electronics. PPVs generally exhibit electron mobilities lower than 10(-4) cm(2) V(-1) s(-1), thus hindering their applications in high-performance polymer field-effect transistors and organic photovoltaics. Herein, we design and synthesize a novel electron-deficient PPV derivative, benzodifurandione-based PPV (BDPPV). This new PPV derivative displays high electron mobilities up to 1.1 cm(2) V(-1) s(-1) under ambient conditions (4 orders of magnitude higher than those of other PPVs), because it overcomes common defects in PPVs, such as conformational disorder, weak interchain interaction, and a high LUMO level. BDPPV represents the first polymer that can transport electrons over 1 cm(2) V(-1) s(-1) under ambient conditions.
聚对苯乙炔衍生物（PPVs）是有机电子学中研究最多的 p 型聚合物之一。PPVs 的电子迁移率通常低于 10(-4) cm(2) V(-1) s(-1)，因此阻碍了它们在高性能聚合物场效应晶体管和有机光伏中的应用。在此，我们设计并合成了一种新型的缺电子 PPV 衍生物，苯并二呋喃二酮基 PPV（BDPPV）。这种新型的 PPV 衍生物在环境条件下显示出高达 1.1 cm(2) V(-1) s(-1)的高电子迁移率（比其他 PPVs 高出 4 个数量级），因为它克服了 PPVs 中的常见缺陷，如构象无序、弱链间相互作用和高 LUMO 能级。BDPPV 是第一个在环境条件下电子迁移率超过 1 cm(2) V(-1) s(-1)的聚合物。
