La₂O₂MQ₂ phases: stability and synthetic challenges

Hebberd, Glen R; Mendis, Budhika; Bowen, Leon; Clark, Stewart J; Mccabe, Emma E

Abstract

Oxychalcogenides containing transition metal or p block cations have potential for thermoelectric, photocatalytic and magnetic applications but the synthetic pathways to these quaternary phases are not fully understood. This presents a challenge to the design and preparation of new functional materials. Our combined experimental and computational study of La₂O₂MQ₂ (M = +2 cation; Q = sulfide, selenide anion) systems explores the thermodynamic constraints on synthesis and highlights the subtle balance in stabilities of phases formed via competing reaction pathways.

Citation

Hebberd, G. R., Mendis, B., Bowen, L., Clark, S. J., & Mccabe, E. E. (2024). La₂O₂MQ₂ phases: stability and synthetic challenges. Solid State Sciences, 157, Article 107719. https://doi.org/10.1016/j.solidstatesciences.2024.107719

• Journal Article Type: Article
• Acceptance Date: Oct 7, 2024
• Online Publication Date: Oct 17, 2024
• Publication Date: 2024-11
• Deposit Date: Oct 8, 2024
• Publicly Available Date: Oct 25, 2024
• Journal: Solid State Sciences
• Print ISSN: 1293-2558
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 157
• Article Number: 107719
• DOI: https://doi.org/10.1016/j.solidstatesciences.2024.107719
• Public URL: https://durham-repository.worktribe.com/output/2950660