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Among transition metal phosphides, gold phosphide (Au2P3) is particularly uncommon and lacks established synthesis methods for large-scale or structurally controlled materials, thus hindering its functional applications. This study introduces a synthetic strategy involving annealing gold mesh in red phosphorus vapor within a sealed quartz tube reactor, enabling a direct structural transformation into crystalline Au2P3 while preserving macroscopic geometry.
Comprehensive characterization using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy confirms successful formation, revealing covalent Au─P bonding and a semiconducting nature validated by density functional theory simulations, which accurately predict lattice parameters and electronic properties. This
method opens possibilities for practical applications of Au2P3.

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  This is the peer reviewed version of the following article: Suzuki Hajime, Shoji Shusaku, Garcia-Escobar Fernando, Tashiro Tomoya, Abe Hideki, Takahashi Keisuke, Phys. Status Solidi RRL, 2025, 19, e2500298, which has been published in final form at https://doi.org/10.1002/pssr.202500298. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

Keyword: Gold Phosphide

Date published: 2025-08-25

Publisher: Wiley

Journal:

• Physica Status Solidi-Rapid Research Letters (ISSN: 18626254) vol. 19 issue. 10 2500298

Funding:

• Exploratory Research for Advanced Technology JPMJER1903

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.6072

First published URL: https://doi.org/10.1002/pssr.202500298

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Updated at: 2026-04-30 12:01:11 +0900

Published on MDR: 2026-08-25 08:29:29 +0900