Abstract 2D materials are considered to be the most promising materials for photodetectors
due to their unique optical and electrical properties. Since the discovery of graphene, many …

The extraordinary electronic, optical, and mechanical characteristics of 2D materials make
them promising candidates for optoelectronics, specifically in infrared (IR) detectors owing to …

Unipolar barrier structures are used to suppress dark current in photodetectors by blocking
majority carriers. Designing unipolar barriers with conventional materials is challenging due …

Metasurfaces, with extremely exotic capabilities to manipulate electromagnetic (EM) waves,
have derived a plethora of advanced metadevices with intriguing functionalities …

On-chip polarization-sensitive photodetectors offer unique opportunities for next-generation
ultra-compact polarimeters. So far, mainstream approaches have relied on the anisotropic …

Bulk photovoltaic effect (BPVE), featuring polarization-dependent uniform photoresponse at
zero external bias, holds potential for exceeding the Shockley-Queisser limit in the efficiency …

Semimetals are being explored for their unique advantages in low-energy high-speed
photodetection, although they suffer from serious drawbacks such as an intrinsically high …

Free-space circularly polarized light (CPL) detection, requiring polarizers and wave plates,
is well established, but such a spatial degree of freedom is unfortunately absent in …

Photodetection over a broad spectral range is necessary for multispectral sensing and
imaging. Despite the fact that broadband single-element detectors with high performance …

Frequency upconversion technique, where the infrared signal is nonlinearly translated into
the visible band to leverage the silicon sensors, offers a promising alternation for the mid …