A bio-inspired total current nanogenerator

Abstract

Conventional nanogenerators typically employ displacement current as the driving force to output alternating current (AC). It is thus inevitable to face a series of complex power management issues, such as...

The pitfalls of using stainless steel (SS) coin cells in aqueous zinc battery research

“…[1][2][3][4] Moreover, the utilization of a Zn metal electrode in battery production offers a simpler and more efficient technique with lower complexity. 5 Over the past few decades, researchers have focused on enhancing the rechargeability of Zn batteries, 6,7 aiming to control Zn morphological changes and suppressing the hydrogen evolution reaction (HER) through advanced electrolyte formulations (e.g. additives, [8][9][10] solvents, 11 and zinc salts 12 ), protective coating engineering, [13][14][15] and substrate design.…”

A constant-current generator via water droplets driving Schottky diodes without a rectifying circuit

“…The gravitational potential energy of the droplet is transformed into kinetic energy when it impinges onto p-Si, and is accompanied by electron transfer. [30][31][32][33][34][35][36][37][38][39][40] According to the Kelvin probe force microscopy (KPFM) results, the contact potential difference between the AFM tip and p-Si decreases from 742 mV to 586 mV with increasing impinging time (Fig. 3a and b), showing that the surface potential of p-Si increases gradually.…”

Water droplet energy harvesting

“…As a kind of high-entropy energy, significant progress has been made in harvesting droplet energy based on various mechanisms and showing decent perspectives of powering the worldwide-distributed electronics and sensing nodes, as shown in Figure 1. 19,29,[49][50][51][52][53][54][55][56][57] In 1867, a British scientist, Lord Kelvin invented the Kelvin water dropper based on electrostatic induction, regarded as an earlier classic droplet energy harvesting technology. 41,58,59 Then, the theories and models of raindrop energy harvesting relaying on the piezoelectric, 35,60 reverse electrowetting, 42,[61][62][63] and hydrovoltaic technology [64][65][66] are sequentially proposed, intending to practical applications in diverse selfpowered sensing systems.…”

“…As a kind of high‐entropy energy, significant progress has been made in harvesting droplet energy based on various mechanisms and showing decent perspectives of powering the worldwide‐distributed electronics and sensing nodes, as shown in Figure 1 19,29,49–57 . In 1867, a British scientist, Lord Kelvin invented the Kelvin water dropper based on electrostatic induction, regarded as an earlier classic droplet energy harvesting technology 41,58,59 .…”