The past decade has witnessed the great success achieved by metal halide perovskites (MHPs) in photovoltaic and related fields. However, challenges still remain in further improving their performance, as well as, settling the stability issue for future commercialization. Recently, MHP/2D material heterostructures that combining MHPs with the low‐cost and solution‐processable 2D materials have demonstrated unprecedented improvement in both performance and stability due to the distinctive features at hetero‐interface. The diverse fabrication techniques of MHPs and 2D materials allow them to be assembled as heterostructures with different configurations in a variety of ways. Moreover, the large families of MHPs and 2D materials provide the opportunity for the rational design and modification on compositions and functionalities of MHP/2D materials heterostructures. Herein, a comprehensive review of MHP/2D material heterostructures from syntheses to applications is presented. First, various fabrication techniques for MHP/2D material heterostructures are introduced by classifying them into solid‐state methods and solution‐processed methods. Then the applications of MHP/2D heterostructures in various fields including photodetectors, solar cells, and photocatalysis are summarized in detail. Finally, current challenges for the development of MHP/2D material heterostructures are highlighted, and future opportunities for the advancements in this research field are also provided.

中文翻译：

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金属卤化物钙钛矿/二维材料异质结构：合成与应用

过去十年见证了金属卤化物钙钛矿（MHP）在光伏及相关领域取得的巨大成功。然而，在进一步提高其性能以及解决未来商业化的稳定性问题方面仍然存在挑战。最近，由于异质界面的独特特征，将 MHPs 与低成本和可溶液加工的二维材料相结合的 MHP/2D 材料异质结构在性能和稳定性方面表现出前所未有的改进。MHP 和 2D 材料的多种制造技术允许它们以多种方式组装为具有不同配置的异质结构。而且，大量的 MHP 和 2D 材料为合理设计和修改 MHP/2D 材料异质结构的成分和功能提供了机会。在此，对 MHP/2D 材料异质结构从合成到应用进行了全面回顾。首先，介绍了 MHP/2D 材料异质结构的各种制造技术，将它们分为固态方法和溶液处理方法。然后详细总结了MHP/2D异质结构在光电探测器、太阳能电池和光催化等各个领域的应用。最后，强调了 MHP/2D 材料异质结构发展的当前挑战，并提供了该研究领域未来发展的机会。介绍了从合成到应用的 MHP/2D 材料异质结构的全面回顾。首先，介绍了 MHP/2D 材料异质结构的各种制造技术，将它们分为固态方法和溶液处理方法。然后详细总结了MHP/2D异质结构在光电探测器、太阳能电池和光催化等各个领域的应用。最后，强调了 MHP/2D 材料异质结构发展的当前挑战，并提供了该研究领域未来发展的机会。介绍了从合成到应用的 MHP/2D 材料异质结构的全面回顾。首先，介绍了 MHP/2D 材料异质结构的各种制造技术，将它们分为固态方法和溶液处理方法。然后详细总结了MHP/2D异质结构在光电探测器、太阳能电池和光催化等各个领域的应用。最后，强调了 MHP/2D 材料异质结构发展的当前挑战，并提供了该研究领域未来发展的机会。然后详细总结了MHP/2D异质结构在光电探测器、太阳能电池和光催化等各个领域的应用。最后，强调了 MHP/2D 材料异质结构发展的当前挑战，并提供了该研究领域未来发展的机会。然后详细总结了MHP/2D异质结构在光电探测器、太阳能电池和光催化等各个领域的应用。最后，强调了 MHP/2D 材料异质结构发展的当前挑战，并提供了该研究领域未来发展的机会。