The two-dimensional congeners of the well-known three-dimensional perovskites display new properties enabled by their reduced dimensionality. Here, organic molecules separate inorganic sheets, affording the properties of both discrete molecules and extended solids in single, well-defined materials. The choice of organic and inorganic components engenders a large range of structural motifs, which yield diverse properties such as electroluminescence, white-light emission, photoconductivity, porosity, and reactivity. Layered halide perovskites have been known for decades. Their recent resurgence compels us to understand the fundamental studies that set the stage for their current technological relevance. We are not providing a comprehensive review of this vast and rapidly growing field. Instead, we highlight some of the discoveries that have directed current research in this field. We hope to introduce new researchers to layered halide perovskites to bring fresh perspectives to study this venerable family of...

中文翻译：

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层状卤化物钙钛矿的多样性

众所周知的三维钙钛矿的二维同系物显示出其降维所带来的新特性。在这里，有机分子将无机片材分开，在单一、明确定义的材料中提供离散分子和扩展固体的特性。有机和无机组分的选择产生了大范围的结构图案，从而产生多种特性，例如电致发光、白光发射、光电导性、孔隙率和反应性。层状卤化物钙钛矿已为人所知数十年。它们最近的复兴迫使我们了解为它们当前的技术相关性奠定基础的基础研究。我们不会对这个广阔且快速发展的领域进行全面审查。反而，我们重点介绍了指导该领域当前研究的一些发现。我们希望向新的研究人员介绍层状卤化物钙钛矿，为研究这个古老的钙钛矿家族带来新的视角。