Electron-Deficient Poly(p-phenylene vinylene) Provides Electron Mobility over 1 cm2 V–1 s–1 under Ambient Conditions
2013
Lei, Ting | Dou, Jin-Hu | Cao, Xiao-Yu | Wang, Jie-Yu | Pei, Jian
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 cm² 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 cm² 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 cm² V–¹ s–¹ under ambient conditions.
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