Solvent composition regulates the Se : Sb ratio in antimony selenide nanowires deposited from thiol-amine solvent mixtures.

ABSTRACT: Antimony selenide (Sb₂Se₃), a V₂VI₃ semiconductor with an intriguing crystal structure, has demonstrated improved power conversion and solar-to-hydrogen efficiencies in recent years. Depositing antimony selenide nanowires (NWs) from a solution such as a thiol : amine "alkahest" ink is a low-cost and facile route to deposit high surface area photocathodes. However, little is known about the correlations between the solvent composition and the crystallites' structure and optoelectronic properties, which are crucial for photovoltaic and photoelectrochemical applications. We found that the Se : Sb ratio in the NWs decreases from 3 : 2 to less than 1 : 1 with decreasing thiol : amine ratio in the ink used for deposition but not in the solvent mixture

SUBMITTER: Vashishtha A 

PROVIDER: S-EPMC9419773 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature