Fig. 4: Charge transport mechanism. | Nature Communications

Fig. 4: Charge transport mechanism.

From: Designing tailored combinations of structural units in polymer dielectrics for high-temperature capacitive energy storage

Fig. 4

a Schematic diagram of six polymer chains at the lowest energy. b The rotational energy barrier of benzene ring as a function of rotation angle. c Current density of the PI-derived polymers synthesized from pyromellitic dianhydride as a function of electric field at 200 °C. d Current density of PI-derived polymers synthesized from long-chain dianhydride monomers as a function of electric field at 200 °C. e Thermally stimulated depolarization current of two groups of polymers with the same Eg.

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