Dye-sensitized photoelectrochemical water oxidation through a buried junction.

ABSTRACT: Water oxidation has long been a challenge in artificial photosynthetic devices that convert solar energy into fuels. Water-splitting dye-sensitized photoelectrochemical cells (WS-DSPECs) provide a modular approach for integrating light-harvesting molecules with water-oxidation catalysts on metal-oxide electrodes. Despite recent progress in improving the efficiency of these devices by introducing good molecular water-oxidation catalysts, WS-DSPECs have poor stability, owing to the oxidation of molecular components at very positive electrode potentials. Here we demonstrate that a solid-state dye-sensitized solar cell (ss-DSSC) can be used as a buried junction for stable photoelectrochemical water splitting. A thin protecting layer of TiO₂ grown by atomic layer deposition (ALD) sta

SUBMITTER: Xu P 

PROVIDER: S-EPMC6142270 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature