Review of Molybdenum Disulfide Photodetectors

Owing to their unique optical and electronic properties, two-dimensional (2D) materials have demonstrated broad promising applications in optoelectronic devices. Molybdenum disulfide (MoS2), representative 2D material, has shown remarkable advantages in the field of photodetection because of its atomic-level interfaces and thickness-dependent tunable hand structure. However, after many years of extensive studies. MoS2 devices have reached a bottleneck in terms of performance. To further improve the performance of MoS2 devices, various methods, such as hand engineering, ferroelectric polarization, and plasmon resonance, have been investigated. However, a thorough review of such studies has not been conducted. In this paper, we briefly summarize the latest theoretical and practical research into MoS2 photodetectors. The principles, structure design, preparation and optoelectronic characteristics of the new MoS2 photodetectors based on the three aforementioned methods were reviewed. This comprehensive review can broaden the existing understanding of MoS2 devices and provide important guidelines for future applications.