Renewed interest has brought significant attention to tune coherently the electronic and optical properties of hybrid organic–inorganic perovskites (HOIPs) in recent years. Tailoring the intimate structure–property relationship is a primary target toward the advancement of light-harvesting technologies. These constructive progresses are expected to promote staggering endeavors within the solar cells community that needs to be revisited. Several considerations and strategies are introduced mainly to illustrate the importance of structural stability, interfacial alignment, and photo-generated carriers extraction across the perovskite heterostructures. Here, we review recent strides of such vast compelling diversity in order to shed some light on the interplay of the interfacial chemistry, photophysics, and light-emitting properties of HOIPs via molecular engineering or doping approach. In addition, we outline several fundamental knowledge processes across the role of charge transfer, charge carrier extraction, passivation agent, bandgap, and emission tunability at two-dimensional (2D) level of HOIPs/molecule heterointerfaces. An extensive range of the relevant work is illustrated to embrace new research directions for employing organic molecules as targeted active layer in perovskite-based devices. Ultimately, we address important insights related to the physical phenomena at the active molecules/perovskites interfaces that deserve careful considerations. This review specifically outlines a comprehensive overview of surface-based interactions that fundamentally challenges the delicate balance between organic materials and perovskites, which promotes bright future of desired practical applications.

中文翻译：

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有机混合钙钛矿的电子和光学改性

近年来，新的兴趣引起了人们对协调调整有机-无机杂化钙钛矿（HOIPs）的电子和光学性质的极大关注。调整密切的结构-性能关系是推进光捕获技术的主要目标。预计这些建设性进展将促进需要重新审视的太阳能电池社区内的惊人努力。介绍了几个考虑因素和策略，主要是为了说明结构稳定性、界面排列和光生载流子提取在钙钛矿异质结构中的重要性。在这里，我们回顾了最近如此巨大的引人注目的多样性所取得的进展，以便阐明界面化学、光物理学、通过分子工程或掺杂方法获得HOIP的发光特性。此外，我们概述了在 HOIP/分子异质界面的二维 (2D) 水平上电荷转移、电荷载流子提取、钝化剂、带隙和发射可调性的作用的几个基本知识过程。说明了广泛的相关工作以涵盖在基于钙钛矿的器件中使用有机分子作为目标活性层的新研究方向。最终，我们解决了与活性分子/钙钛矿界面处的物理现象相关的重要见解，值得仔细考虑。这篇综述特别概述了基于表面的相互作用，从根本上挑战了有机材料和钙钛矿之间的微妙平衡，