Highly permeable and transparent device-on-top hydrogel protector of the PEC device. a, Schematic of PAAM hydrogel-protected Pt/TiO2/Sb2Se3 photocathode for PEC water splitting under illumination. Because the PAAM hydrogel is highly permeable and transparent, hydrogen ions in the electrolyte and incident light can reach the photoelectrode without disturbance from the device-on-top layer. b, Fabrication of the device-on-top hydrogel protector. APTES denotes (3-aminopropyl)triethoxysilane. Credit: Tan et al, Nature Energy (2022). DOI: 10.1038/s41560-022-01042-5
In recent years, engineers have been trying to devise new technologies to produce and store energy more sustainably, with the hope of overcoming the …
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