Solution phase treatments of Sb₂Se₃ heterojunction photocathodes for improved water splitting performance.

ABSTRACT: Antimony selenide (Sb₂Se₃) is an auspicious material for solar energy conversion that has seen rapid improvement over the past ten years, but the photovoltage deficit remains a challenge. Here, simple and low-temperature treatments of the p-n heterojunction interface of Sb₂Se₃/TiO₂-based photocathodes for photoelectrochemical water splitting were explored to address this challenge. The FTO/Ti/Au/Sb₂Se₃ (substrate configuration) stack was treated with (NH₄)₂S as an etching solution, followed by CuCl₂ treatment prior to deposition of the TiO₂ by atomic layer deposition. The different treatments show different mechanisms of action compared to similar reported treatments of

SUBMITTER: Adams P 

PROVIDER: S-EPMC10088359 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature