Figure 5.

Dependence of the electrical outputs on the bending angle. (a) The measured Q_SC of the KT-TENG with different bending angles. (b) The relationship between Q_SC and the bending angle. (c) The measured V_OC of the KT-TENG with different bending angles. (d) The relationship between V_OC and the bending angle. (e) Photograph of the KT-TENG attached onto an artificial finger. (f) The output stability of the KT-TENG operation at a bending angle of 45° with 1000 bending-releasing cycles. The inset shows the experimental setup for the electric output measurement under bending motion.