A photochemical diode artificial photosynthesis system for unassisted high efficiency overall pure water splitting.

ABSTRACT: The conversion of solar energy into chemical fuels can potentially address many of the energy and environment related challenges we face today. In this study, we have demonstrated a photochemical diode artificial photosynthesis system that can enable efficient, unassisted overall pure water splitting without using any sacrificial reagent. By precisely controlling charge carrier flow at the nanoscale, the wafer-level photochemical diode arrays exhibited solar-to-hydrogen efficiency ~3.3% in neutral (pH ~ 7.0) overall water splitting reaction. In part of the visible spectrum (400-485 nm), the energy conversion efficiency and apparent quantum yield reaches ~8.75% and ~20%, respectively, which are the highest values ever reported for one-step visible-light driven photocatalytic overall pure wa

SUBMITTER: Chowdhury FA 

PROVIDER: S-EPMC5923260 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature