Recent trends in the fabrication of photodetectors: A detailed analysis on the photodetection properties of new 2D-TMCs

This article deals with two-dimensional (2D) transition metal chalcogenides (TMCs) in photodetection applications. These materials have attracted huge interest owing to their exceptional optoelectronic properties that make them competitive materials for the next generation of optoelectronic devices, especially for photodetectors. It is worth mentioning that TMCs demonstrate outstanding electrical and optical properties as a result of their tunable band gap and appearing quantum effects caused by low dimensionality. The article provides valuable information on the most prospective TMCs materials in photodetection and a brief overview on materials that have not yet undergone in-depth study, but which have a perspective in photodetection applications. Much attention is given to such TMCs as molybdenum disulphide (MoS2), titanium disulphide (TiS2), titanium trisulphide (TiS3), tungsten disulphide (WS2), rhenium sulfide (ReS2), rhenium selenide (ReSe2), and their compounds with each other and with other materials such as ReS2/Te, PdSe2/WS2, MoS2/WS2, MoS2/CsPbBr3, PbS/TiS2/PMMA, and so forth. Their properties in respect to photodetection are a part of this report. Additionally, we describe some photodetectors that recently have been developed by researchers and discuss their configurations as well as working principles and physical justifications of their photodetection performances.