Abstract Hot electrons generated in metallic nanostructures have shown promising perspectives for photodetection. This has prompted efforts to enhance the absorption of photons by metals. However, most strategies require fine-tuning geometric parameters achieve perfect absorption, accompanied demanding fabrications. Here, we theoretically propose a Ag grating/TiO 2 cladding hybrid structure hot...

Against the background of a variety polarized optical applications, great number polarization-sensitive photodetectors based on anisotropic two-dimensional (2D) materials and their heterojunctions have been proposed. However, low polarization ratio (PR), describing response sensitivity angle incident light, is still demanding to be solved. In this work, we demonstrate van der Waals (vdW) Schott...