ABSTRACT
In this review chapter, a comprehensive summary of the recent development on transition metal dichalcogenide (TMD) based van der Waals (vdW) heterostructures are presented for broadband photodetection application. In this context, emphasis has been given on the underlying physics and design aspects of such TMD-based vdW heterostructure photodetectors. A general understanding on the photodetector has been developed by emphasizing the underlying physics and working principle of the device. Subsequently, the relevant performance matrices and design parameters of the photodetector have been identified and correlated with TMD-based vdW material systems. Next, the recent developments in different categories of the TMD-based vdW photodetector are highlighted. Finally, a detailed comparative performance analysis between different TMD-based vdW photodetectors and their conventional bulk counterparts has been undertaken and subsequently, the present status and future scope of this domain are indicted.
