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In this work, we demonstrate the production of pure and doped Sb2S3 thin films by electrophoretic deposition. The consequences of silver and copper doping were evaluated by measuring the films’structural and optoelectrical properties. Sb2S3 nanoparticles (NPs) were first synthesized in ethylene glycol and stabilized with polyethylenimine. Doped NPs were obtained thanks to silver or copper precursors added during the synthesis process. Orthorhombic Sb2S3 and extra AgSbS2 and CuSbS2 phases were identified by XRD after thermal treatment at 300 °C under vacuum. Metallic Sb impurities were also found for thermal treatment under 275 °C. UV−vis−NIR spectroscopy highlighted the optical properties of amorphous and crystalline thin films as well as the variation of optical band gaps by doping. Photocurrent measurement showed an increase in conductivity for doped thin films. Adding silver or copper also brought a slower recombination of electron−hole pairs after switching the light off.

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  This document is the Accepted Manuscript version of a Published Work that appeared in final form in Investigation of Silver and Copper Doping on Antimony Sulfide Thin Films Obtained by Electrophoretic Deposition, copyright © 2024 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.4c04781

Keyword: Electrophoretic deposition, thin films, chalcogenides, coating materials

Date published: 2024-10-24

Publisher: American Chemical Society (ACS)

Journal:

• The Journal of Physical Chemistry C (ISSN: 19327447) vol. 128 issue. 42 p. 18093-18101

Funding:

• Japan Society for the Promotion of Science JSPS PE21752

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5222

First published URL: https://doi.org/10.1021/acs.jpcc.4c04781

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Updated at: 2025-10-24 08:30:26 +0900

Published on MDR: 2025-10-24 08:18:38 +0900