Science Advances

Supplementary Materials

The PDF file includes:

  • Supplementary Materials and Methods
  • Fig. S1. Working principle of the sliding mode DC-TENG during the first cycle.
  • Fig. S2. Working mechanism of a conventional sliding TENG.
  • Fig. S3. Equivalent circuit model of a conventional TENG.
  • Fig. S4. Surface potential of the PTFE film under different conditions.
  • Fig. S5. Transferred charges of the sliding mode DC-TENG at different velocities.
  • Fig. S6. Output performance of the sliding mode DC-TENG where the triboelectric materials are PTFE and nitrile.
  • Fig. S7. Charge density of the sliding mode DC-TENG with nanostructured PTFE.
  • Fig. S8. Short-circuit current of the sliding mode DC-TENG at different gap.
  • Fig. S9. Working mechanism of the sliding mode DC-TENG with two CCEs at the two ends of the slider.
  • Fig. S10. Output performance of the sliding mode DC-TENG with two electrodes at the two ends of the slider.
  • Fig. S11. Output performance of the DC-TENG with different FE widths.
  • Fig. S12. Output performance of the DC-TENG in parallel.
  • Fig. S13. Output performance of the DC-TENG with different CCE lengths.
  • Fig. S14. Long-term output current of the sliding mode DC-TENG.
  • Fig. S15. Average charge at different rotation rates when the rotary motor rotates stably.
  • Table S1. Charge density of a conventional sliding TENG and our sliding DC-TENG.
  • Table S2. Crest factor of the rotary mode DC-TENG at different rotation rates.
  • Table S3. Average charge and the average value of steady current at different rotation rates.
  • Note S1. Working principle of the sliding mode DC-TENG during the first cycle.
  • Note S2. Working mechanism and equivalent circuit model of a conventional sliding TENG.
  • Note S3. Short-circuit current of the DC-TENG at different gap.
  • Note S4. Output performance of the sliding mode DC-TENG with two CCEs at the two ends of the slider.
  • Note S5. Short-circuit current of the DC-TENG with different FE widths.
  • Note S6. Calculation of the crest factor and average current.
  • Note S7. Calculation of the equivalent input current of an electronic watch.
  • Legends for movies S1 to S3
  • References (3739)

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.mp4 format). An electronic watch is powered directly by the sliding mode DC-TENG.
  • Movie S2 (.mp4 format). An electronic calculator is powered by the rotary mode DC-TENG.
  • Movie S3 (.mp4 format). LEDs are powered by the rotary mode DC-TENG.

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