Overall performance improvement of direct-current triboelectric nanogenerators by charge leakage and ternary dielectric evaluation

Abstract

Harvesting sustainable energy from the natural environment, triboelectric nanogenerator (TENG) has emerged as a promising technology that disrupts the traditional energy production model of utilizing fossil fuels. However, suffering from...

Cationic metal–organic framework with charge separation effect as a high output triboelectric nanogenerator material for self-powered anticorrosion

“…During periodic contact and separation, the potential difference between the surfaces of ZUT-iMOF-1(Cu) and PVDF (with very different electron-transfer properties and gain capabilities) will generate a periodic current in the external circuit. 46–49…”

High efficiency triboelectric charge capture for high output direct current electricity

“…4,5 Triboelectric nanogenerators (TENGs), invented by Wang's group in 2012, 6 exhibit efficient conversion of mechanical energy from the environment into electric energy, [7][8][9][10] offering advantages such as ease of manufacturing, 11 diverse working modes, 12,13 flexible structures, 14 and wide selection of materials. [15][16][17] According to the working principle, sliding mode TENGs can be classified into two categories: (1) alternating current triboelectric nanogenerators (AC-TENGs) based on the coupling of triboelectrification and electrostatic induction, 18,19 and (2) direct current triboelectric nanogenerators (DC-TENGs), relying on the coupling of triboelectrification and corona discharge. 2,[20][21][22] In AC-TENGs, the output charge density is directly proportional to the induced charge density of the slider.…”

Ternary Electrification for Efficient Charge Accumulation and Synergetic Charge Collection

“…[11] As a new type of clean energy, it plays an important role as energy supply for miniaturized sensors for its superb advantages such as lightweight, [12,13] simple preparation process, [14] low cost [15,16] and superior capacity of converting lowfrequency mechanical energy into electric energy in ambient environment including raindrops, [17] waves, [18,19] body movement, [20] and wind energy. [21] To boost output performance, most methods such as material selection, [22] surface modification, [23] charge excitation, [24] multiple units integration, [25] dielectric volume effect, [26] and soft contact, [27] have been tried according to different output modes. Although those methods have brought about certain enhancements in output performance, to realize commercial applications, the output charge density and average power density still need to be improved.…”