Wang Mengzhu, Xiao Yingying, Li Ye, Han Lu, Sun Zhicheng, He Liang, Liu Ruping, Hu Kuan
Beijing Institute of Graphic Communication, Beijing 102600, China.
School of Mechanical Engineering, Sichuan University, Chengdu 610065, China.
Materials (Basel). 2022 Jul 11;15(14):4820. doi: 10.3390/ma15144820.
In recent years, optoelectronics and related industries have developed rapidly. As typical optoelectronics devices, photodetectors (PDs) are widely applied in various fields. The functional materials in traditional PDs exhibit high hardness, and the performance of these rigid detectors is thus greatly reduced upon their stretching or bending. Therefore, the development of new flexible PDs with bendable and foldable functions is of great significance and has much interest in wearable, implantable optoelectronic devices. Graphene with excellent electrical and optical performance constructed on various flexible and rigid substrates has great potential in PDs. In this review, recent research progress on graphene-based flexible PDs is outlined. The research states of graphene conductive films are summarized, focusing on PDs based on single-component graphene and mixed-structure graphene, with a systematic analysis of their optical and mechanical performance, and the techniques for optimizing the PDs are also discussed. Finally, a summary of the current applications of graphene flexible PDs and perspectives is provided, and the remaining challenges are discussed.
近年来，光电子及相关产业发展迅速。作为典型的光电器件，光电探测器（PDs）被广泛应用于各个领域。传统光电探测器中的功能材料硬度高，因此这些刚性探测器在拉伸或弯曲时性能会大幅降低。所以，开发具有可弯曲和可折叠功能的新型柔性光电探测器具有重要意义，并且在可穿戴、可植入光电器件方面备受关注。在各种柔性和刚性衬底上构建的具有优异电学和光学性能的石墨烯在光电探测器中具有巨大潜力。在这篇综述中，概述了基于石墨烯的柔性光电探测器的最新研究进展。总结了石墨烯导电薄膜的研究状况，重点关注基于单组分石墨烯和混合结构石墨烯的光电探测器，系统分析了它们的光学和机械性能，还讨论了优化光电探测器的技术。最后，给出了石墨烯柔性光电探测器当前应用的总结和展望，并讨论了剩余的挑战。
