Abstract
<h2>Summary</h2> Two-dimensional (2D) heterostructures constructed of van der Waals-stacked 2D inorganic materials have emerged as a new class of material with emergent properties that can be tuned by regulating atomic registry and twist angles between the two layers. 2D hybrid organic-inorganic perovskites (HOIPs) can be exfoliated or grown as single layers; thus, there is interest in considering van der Waals-stacked heterostructures of HOIP with other HOIPs or with 2D inorganic layers. Uniquely, the interface consists of edge-contact organic cations, and chirality and symmetry properties can be transferred across the interface by choice of organic and inorganic components. In this perspective, Leng and co-authors discuss the peculiarities of 2D HOIP vis-à-vis 2D inorganic materials, the various schemes used for hybridizing such heterostructures, and the physics that can arise from the interfaces.
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