This review highlights MXenes' role in improving photodetector sensitivity and device architectures, suggesting potential in image recognition systems.
Photodetectors incorporating MXenes as supporting components demonstrate high sensitivity, rapid response speed, and self‐powered operation, overcoming the shortcomings of low sensitivity, slow response, and high‐power consumption. This review systematically elucidates the fundamental optoelectronic properties of MXenes, and provides a comprehensive analysis of advanced device architectures leveraging MXenes as transparent electrodes, Schottky contact electrodes, and carrier transport layers. Additionally, the review summarizes the latest advancements in MXene‐enabled photodetectors and emphasizes their promising future in transparent electronics, image recognition systems, and flexible visual sensing platforms. Future research will focus on enhancing synthesis methods, improving long‐term stability, and exploring novel device architectures to ensure MXene‐enabled photodetectors continue to drive innovation in next‐generation optoelectronic devices.
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Wu et al. (2025) studied this question.