Strong Electron-Deficient Polymers Lead to High Electron Mobility in Air and Their Morphology-Dependent Transport Behaviors.

Zheng, Yu-Qing; Lei, Ting; Dou, Jin-Hu; Xia, Xin; Wang, Jie-Yu; Liu, Chen-Jiang; Pei, Jian · Adv Mater · 2016

basic_science · Level V

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Abstract

Planar backbone, locked conformation, and low lowest unoccupied molecular orbital level provide polymer F4 BDOPV-2T with ultrahigh electron mobilities of up to 14.9 cm(2) V(-1) s(-1) and good air stability. It is found that the nonlinear transfer curves can be tuned to near-ideal ones by changing fabrication conditions, indicating that film morphology largely contributes to the nonlinear transfer curves in high-mobility conjugated polymers.