2D materials possess superior optoelectronic properties, such as ultrahigh mobility and broadband photoresponse, making them one of the most vital platforms for diversified photodetectors. However, atomic thickness 2D materials usually suffer from intrinsic low absorption. To promote the photodetector performance, a feasible method is to integrate the 2D materials with low-cost, flexible, and tunable organics that form a charge transfer (CT) heterojunction. As results, in-depth multifunctional CT 2D-inorganic/organic detector exhibits extended functions such as low-power consumption, in-memory detection, and optical-bio synapse to meet the demand of contemporary photonic cell. Particularly, the progresses in wafer-scale monocrystal of both 2D and organic materials render vast potential applications with operation frequencies ranging from ultraviolet to terahertz. Here, the recent advances of 2D-inorganic/organic CT photodetectors are comprehensively reviewed by several classifications. Future developments and applications in optical biology, synapsis, and machine vision are also highlighted.

中文翻译：

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二维无机/有机电荷转移异质结光电探测器的最新进展

二维材料具有优异的光电特性，例如超高迁移率和宽带光响应，使其成为多样化光电探测器最重要的平台之一。然而，原子厚度的二维材料通常存在固有的低吸收。为了提高光电探测器的性能，一种可行的方法是将二维材料与低成本、柔性和可调谐的有机物相结合，形成电荷转移 (CT) 异质结。因此，深度多功能CT二维无机/有机探测器展现出低功耗、内存检测、光学-生物突触等扩展功能，以满足当代光子细胞的需求。特别，二维和有机材料的晶圆级单晶技术的进步带来了巨大的潜在应用，其工作频率从紫外到太赫兹不等。在这里，二维无机/有机CT光电探测器的最新进展通过几个分类进行了全面回顾。还强调了光学生物学、突触和机器视觉的未来发展和应用。