红外光电探测器是将入射的不可见的红外辐射信号转变成电信号输出的器件。红外光电探测器在多个行业均有广泛用途。近年来，石墨烯由于具有从紫外至远红外的宽光谱吸收特性、室温下超高的载流子迁移率、良好的机械柔韧性和环境稳定性等优异性能，使其在超宽谱、超快、非制冷、大面阵、柔性和长寿命光电探测器方面极具潜力，引起了国内外对石墨烯光电探测器的广泛研究。重点阐述了近年来国内外在石墨烯红外光电探测器方面的最新研究进展，主要包括近红外(0.76~1 μm)、短波红外(1~3 μm)、中波红外(3~5 μm)、长波红外(8~12 μm)和超宽谱石墨烯光电探测器。

Infrared photodetector is a device that can transform invisible infrared radiation into electrical signal. It is widely used in many industries. Recent years, graphene has aroused extensive attention among scientists and engineers in optoelectronic fields due to its unique properties such as wide spectral absorption from ultraviolet to far-infrared, ultrahigh carrier mobility at room temperature, good mechanical flexibility and environmental stability. These characteristics make it promising in fabricating ultra-wide spectrum, ultrafast, uncooled, large area array, flexible and long-life photodetectors. The latest research progress in graphene-based infrared photodetectors are reviewed. It mainly includes near-infrared (0.76~1 μm), short-wave infrared (1~3 μm), medium-wave infrared (3~ 5 μm), long-wave infrared (8~12 μm) and ultra-wide spectrum graphene photodetectors.