Kim, Sun-Woo Kim, Jin-Kyeom Kim, Hee Jun Cao, Chen Tian Oh, Nam Khen Yang, Ya Song, Hyun-Cheol Shim, Minseob Park, Hye Sung Baik, Jeong Min 2024-01-19T12:02:54Z 2024-01-19T12:02:54Z 2022-05-12 2022-05 2211-2855 https://pubs.kist.re.kr/handle/201004/115231 Toward a wide range of applications of triboelectric nanogenerator (TENG) as a power source, it is essential to develop a facile scheme to fabricate TENG with low output impedance by tuning the instantaneous output voltage without decreasing the output power. Here, we report a modified sliding-mode TENG, in which the flow of electrons between the grounded metal and the earth induces electric potential across a multilayered film consisting of dielectric/electrode/dielectric/electrode, confirmed by COMSOL simulation. By introducing a high resistance grounding method through the ground, the electron flow is slowed down, thereby decreasing the impedance at the maximum output power from 3 M omega to 0.6 M omega with an enhanced output power by two-fold, explained in terms of reduced charge loss. The new-type of the device makes the charging speed to a capacitor (1 mF) faster by more than two-fold. Based on this result, the generated output power from the rotating-type TENG is supplied to an electrochemical water-splitting system for hydrogen production. Results demonstrate that the applied voltage required to reach 40 mA/cm(2) is decreased to half of the initial voltage. English Elsevier BV Output signals control of triboelectric nanogenerator with metal-dielectric-metal configuration through high resistance grounded systems Article 10.1016/j.nanoen.2022.107023 1 Nano Energy, v.95 Nano Energy 95 N scie scopus 000783233600004 2-s2.0-85124425860 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article BIOMECHANICAL ENERGY DRIVEN OPERATION Sliding-mode triboelectric nanogenerator Metal-dielectric-metal Ground connection High-Resistance-Ground (HRG) Impedance reduction