Phototransistors combine light detection and signal amplification functions into a single device and are regarded as one of the most important components for optoelectronic integration. In recent years, organic phototransistors (OPTs) have attracted worldwide interest because of their potential advantages of low cost, light weight, excellent flexibility and broadband detection. In this review, a brief description of the working mechanisms and performance metrics of OPTs is presented. Afterwards, the recent progress of OPTs based on the conventional planar field‐effect transistor structure is presented. Furthermore, from the perspective of novel device architectures and interface engineering, strategies for improving the performance of OPTs are discussed. Flexible optoelectronic devices based on OPTs for potential application in next‐generation wearable and human‐friendly electronics are also highlighted. Finally, an outlook for future research directions and challenges for OPTs is provided.

中文翻译：

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有机光电晶体管的最新进展：半导体材料，器件结构和光电应用

光电晶体管将光检测和信号放大功能组合到单个设备中，被认为是光电集成最重要的组件之一。近年来，有机光电晶体管（OPT）由于其低成本，轻巧，出色的柔韧性和宽带检测的潜在优势而引起了全世界的关注。在这篇综述中，简要介绍了OPT的工作机制和性能指标。随后，介绍了基于常规平面场效应晶体管结构的OPT的最新进展。此外，从新颖的设备架构和接口工程的角度，讨论了提高OPT性能的策略。还重点介绍了基于OPT的柔性光电设备，它们有可能在下一代可穿戴和人类友好的电子产品中应用。最后，展望了OPT的未来研究方向和挑战。