1. Donor–Node–Acceptor Polymer with Excellent n-Doped State for High-Performance Ambipolar Flexible Supercapacitors
- Author
-
Muddasir Hanif, Zengqi Xie, Jianxia Jiang, Leiqiang Qin, Yuguang Ma, and Weitao Ma
- Subjects
chemistry.chemical_classification ,Materials science ,Polymers and Plastics ,Ambipolar diffusion ,Nanoporous ,Organic Chemistry ,Doping ,02 engineering and technology ,Polymer ,Conductivity ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrochemistry ,01 natural sciences ,Acceptor ,0104 chemical sciences ,Inorganic Chemistry ,chemistry ,Chemical engineering ,Electrode ,Polymer chemistry ,Materials Chemistry ,0210 nano-technology - Abstract
A redox active polymer network film containing donor–node–acceptor (D–n–A) units was prepared by using the electropolymerization (EP) of the precursor (4Cz–4Cl–PBI). The polymer film was characterized by the UV–vis absorption, FT-IR, SEM, XRD and electrochemical techniques. The precursor contains phenyl connected two carbazoles (D) linked by the two sp3 N-nodes on both sides of a tetrachloro-substituted PBI (A). The two N-nodes block the conjugation between D and A units, resulting in an independent redox activity (from D and A) and doping behaviors. This novel concept of the D–n–A polymer effectively increases the conductivity and stability of the n-doped state. The EP film can be prepared on ITO and flexible electrodes with large area, smooth surface morphology, controllable thickness, and nanoporous structure. Notably, the polymer network film showed ambipolar doping characteristics, with high capacitance (both n- and p-doped states). These properties are very suitable to construct ambipolar electrodes...
- Published
- 2017