Fig. 4: Output performance of IENGs with different units. | Nature Communications

Fig. 4: Output performance of IENGs with different units.

From: Enhancing the current density of a piezoelectric nanogenerator using a three-dimensional intercalation electrode

Fig. 4

Piezoelectric layer is constructed by 12 composite thin films, and then divided into 1, 2, 3, 4, 6 and 12 units by different pairs of intercalation electrode. Adjacent units obtain opposite polarization direction. a, b Output current and output voltage of each case. Insets are the enlarged views of output current generated by 12 units and output voltage by 1 unit, respectively. c The trend of peak to peak values of output current and voltage in a and b with the increase of units. d The trend of charge densities calculated from current signals with the increase of units.

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