Fig. 4: Performance enhancement of different mode DC-TENGs by improving Coulombic efficiency. | Nature Communications

Fig. 4: Performance enhancement of different mode DC-TENGs by improving Coulombic efficiency.

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

Fig. 4

a The structure of CDC-TENG. b <i> CDC-TENG without insulator, the gap of electrodes is 0.5 mm; <ii> CDC-TENG w/o insulator, the gap of electrodes is 3.0 mm; <iii> CDC-TENG w/o insulator, the gap of electrodes is 1 mm, and the width of insulator is 3.0 mm. c The Q-V curve of CDC-TENG. d The output power of CDC-TENG. e The structure diagram of DEDC-TENG, nitrile is used to enhance triboelectrification. f The structure diagram of DEDC-TENG w/ insulator. g The Q-V curve obtained by linearly fitting the experimental data. h The structure diagram of rotary-mode DC-TENG (K = 9). i The constant current of DC-TENG (The frequency is 1 Hz, and the rotation speed is 60 rpm). j The I-V curve of DC-TENG w/ or w/o insulator. k The represented average power density of rotary mode DC-TENG with different optimization strategies. Source data are provided as a Source data file.

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