The technology to record image information at high resolution is of great importance in the optical areas of applied physics and biochemical imaging, as well as in commercial imaging applications such as cameras and machine vision. Organic semiconductors are drawing interest as photodetecting materials for next-generation high-resolution image sensors (IS) owing to their excellent properties such as high absorption coefficient, and color tunability and cost-effective manufacturability. These advantages offer the potential to exceed the technical limitation of silicon-based IS. This article reviews the state-of-the-art technologies of materials and devices in solution-processed organic photodiodes (OPDs) to meet the demands for future high-resolution ISs, which involves challenges ranging from the absence of a fundamental understanding of OPDs to commercialization requirements. Further, this article overviews the progress in the industry as well as academic society. The various requirements and technologies for the development of color-filter-free OPDs with narrow-wavelength detection are also discussed. This review concludes with an outlook of advances in these materials and devices to open up new commercialization routes.

以高分辨率记录图像信息的技术在应用物理和生化成像的光学领域以及相机和机器视觉等商业成像应用中具有重要意义。有机半导体作为下一代高分辨率图像传感器 (IS) 的光电检测材料引起了人们的兴趣，因为它们具有优异的特性，例如高吸收系数、颜色可调性和成本效益高的可制造性。这些优势提供了超越硅基 IS 技术限制的潜力。本文回顾了溶液处理有机光电二极管 (OPD) 中材料和器件的最新技术，以满足未来高分辨率 IS 的需求，这涉及从缺乏对 OPD 的基本了解到商业化要求的挑战。此外，本文概述了行业和学术界的进展。还讨论了开发具有窄波长检测的无彩色滤光片 OPD 的各种要求和技术。本综述总结了这些材料和设备的进展前景，以开辟新的商业化路线。