Fig. 4: Electric generation, working mechanism and the regulation of electricity-generating performance of md-layer.
From: Multistage coupling water-enabled electric generator with customizable energy output
a Scheme of the md-layer structure. The md-layer is composed of electricity-generating material (PVA-LiCl(0.5 M) membrane, H-PSS membrane and PVA-LiCl(0.01 M) membrane from bottom to top) and asymmetric Au electrodes. b Working mechanism of moisture-enabled electric generation in md-layer. c Current-voltage curve of md-layer after absorbing moisture for 1,330 s. Inset displays the schematic of circuit. d The maximum rectification ratio of md-layer, H-PSS membrane and md-layer without H-PSS. e Voltage and current output of md-layer (1 × 1 cm). The electrical-generated performance can sustain 10,000 s under 90% RH 25 °C. f Voltage and current output of md-layer in response to variation in RH. g Voltage and the current of md-layer with different area. h Voltage, current and area power density of md-layer (0.25 × 0.25 cm) with different electric resistance. Inset displays the schematic of circuit. Source data are provided as a Source Data file.
