Fig. 3: Performance enhancement of DC-TENG by spontaneously established reverse electric field. | Nature Communications

Fig. 3: Performance enhancement of DC-TENG by spontaneously established reverse electric field.

From: Spontaneously established reverse electric field to enhance the performance of triboelectric nanogenerators via improving Coulombic efficiency

Fig. 3

a QSC, b VOC, and c average output power of DC-TENGs. d The ideal CMEO of DC-TENG. Q1, Q2, and Q3 are the output charge when the output voltage of DC-TENG is V1, V2, and V3, respectively. The shaded area represents the output energy. e The curve for real energy output (CREO). Q’1, Q’2, and Q’3 are the actual output charge when the output voltage of DC-TENG are V1, V2, and V3, respectively. f The CREO of DC-TENG w/ insulator. g The Q-V curve of DC-TENG, where voltage as the horizontal axis and charge as the vertical axis. h The output charge and the output voltage after the nth motion cycle. i The Q-V curve obtained by linearly fitting the experimental data in h. j The Q-V curve of DC-TENGs with different parameters. Inset table shows Coulombic efficiency of different devices at the voltage of 800 V. Source data are provided as a Source data file.

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