Fig. 1: Designing details and outdoor tests of the drop-based power generator.
From: Circadian humidity fluctuation induced capillary flow for sustainable mobile energy

a Schematic illustration of the device with IL drop pinned on PDMS nanowire array and molecular structure of the selected IL. b VOC and IL drop WC curves indicating strong relation between moisture adsorption/desorption and power generation. c Continuous recording of VOC from above device in outdoor tests for 3 days. The surrounding RH is also provided.