Abstract

AbstractPhototransistors 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.

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