铋基二元化合物，包括 Bi 2 Se 3和 Bi 2 Te 3，作为众所周知的拓扑绝缘体已经引起越来越多的关注。另一方面，基于铋的三元化合物表现出多种特性，例如超高载流子迁移率和强 Rashba 自旋分裂。此外，它们拥有卓越的光催化性能，意味着在广泛的应用中具有巨大的潜力。二维（2D）材料的独特结构和性能，尤其是二维 Bi 2 O 2非凡的电子和光学性能Se，已经引起了对二维铋基三元化合物的探索的重要研究兴趣。在这篇综述中，我们将全面讨论三个重要的铋基三元化合物家族的性质，包括 Bi 2 O 2 X (X = S、Se、Te)、BiTeX (X = Cl、Br、I) 和 BiOX (X = Cl、Br、I)。我们特别强调了它们 2D 形式的最新进展，包括它们的新特性和应用。该综述将有助于了解铋基三元化合物的优异性能，并为未来对这些新兴二维材料的研究提供视角。
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Emerging members of two-dimensional materials: bismuth-based ternary compounds
Bismuth-based binary compounds, including Bi2Se3 and Bi2Te3, have attracted increasing attention as well-known topological insulators. On the other hand, bismuth-based ternary compounds exhibit diverse properties, such as, ultrahigh carrier mobility, and strong Rashba spin splitting. Moreover, they boast of superior photocatalytic properties, implying great potential to be used in a wide range of applications. The unique structure and properties of two-dimensional (2D) materials, especially the extraordinary electronic and optical properties of 2D Bi2O2Se, have given rise to significant research interests for the exploration of 2D bismuth-based ternary compounds. In this review, we will comprehensively discuss the properties of three important families of bismuth-based ternary compounds, including Bi2O2X (X = S, Se, Te), BiTeX (X = Cl, Br, I), and BiOX (X = Cl, Br, I). In particular, we have placed emphasis on the latest progress in their 2D forms, including their novel properties and applications. This review would aid in understanding the superior performance of bismuth-based ternary compounds and offer a perspective for future research on these emerging 2D materials.