Thiol-Amine-Based Solution Processing of Cu₂ S Thin Films for Photoelectrochemical Water Splitting.

ABSTRACT: Cu₂ S is a promising solar energy conversion material owing to its good optical properties, elemental earth abundance, and low cost. However, simple and cheap methods to prepare phase-pure and photo-active Cu₂ S thin films are lacking. This study concerns the development of a cost-effective and high-throughput method that consists of dissolving high-purity commercial Cu₂ S powder in a thiol-amine solvent mixture followed by spin coating and low-temperature annealing to obtain phase-pure crystalline low chalcocite Cu₂ S thin films. After coupling with a CdS buffer layer, a TiO₂ protective layer and a RuO_x hydrogen evolution catalyst, the champion Cu₂ S photocathode gives a photocurrent density of 2.5 mA cm^-2</

SUBMITTER: Zhang X 

PROVIDER: S-EPMC8518488 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature