Impact of Bi and its oxide phases on Bi2S3 compound transformation and photoelectrochemical performance

Erhon L. Aragão; Ariadne Köche; Gabriela C. Touguinha; Johnny F. Dias; Larissa dos Santos Stein; Julia M. Barradas; Anderson Thesing; Sherdil Khan

doi:10.1039/D5CC02420J

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Impact of Bi and its oxide phases on Bi₂S₃ compound transformation and photoelectrochemical performance†

Erhon L. Aragão,^a Ariadne Köche,

^a Gabriela C. Touguinha,

^b Johnny F. Dias,^b Larissa dos Santos Stein,

^a Julia M. Barradas,^a Anderson Thesing

^a and Sherdil Khan

*^a

Author affiliations

* Corresponding authors

^a Laboratory of Nanomaterials for Renewable Energy and Artificial Photosynthesis (NanoREAP), Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Campus do Vale, Agronomia, Porto Alegre-RS, Brazil
E-mail: sherdil.khan@ufrgs.br

^b Ion Implantation Laboratory, Institute of Physics, Federal University of Rio Grande do Sul (UFRGS), Campus do Vale, Agronomia, Porto Alegre-RS, Brazil

Abstract

Bi₂S₃ films were synthesized by sulfurizing sputtered Bi and Bi₂O₃ (α, β phases). Metallic Bi enabled a more efficient conversion, while Bi₂O₃ impeded Bi₂S₃ formation due to its strong Bi–O bonds. Sulfur distribution along film depth significantly affected photoelectrochemical (PEC) performance, underscoring the critical importance of precursor selection for optimized functionality.

This article is part of the themed collection: Chemistry at the Forefront of the Sustainable Energy Transition

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Article information

DOI: https://doi.org/10.1039/D5CC02420J
Article type: Communication
Submitted: 29 apr. 2025
Accepted: 19 jún. 2025
First published: 23 jún. 2025

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Chem. Commun., 2025, Advance Article

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Impact of Bi and its oxide phases on Bi₂S₃ compound transformation and photoelectrochemical performance

E. L. Aragão, A. Köche, G. C. Touguinha, J. F. Dias, L. dos Santos Stein, J. M. Barradas, A. Thesing and S. Khan, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC02420J

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