Low-dimensional wide-bandgap semiconductors for UV photodetectors

Z Li, T Yan, X Fang - Nature Reviews Materials, 2023 - nature.com
Accurate UV light detection is a crucial component in modern optoelectronic technologies.
Current UV photodetectors are mainly based on wide-bandgap semiconductors (WBSs) …

How to characterize figures of merit of two-dimensional photodetectors

F Wang, T Zhang, R **e, Z Wang, W Hu - Nature Communications, 2023 - nature.com
Photodetectors based on two-dimensional (2D) materials have been the focus of intensive
research and development over the past decade. However, a gap has long persisted …

Enhanced gain and detectivity of unipolar barrier solar blind avalanche photodetector via lattice and band engineering

Q Zhang, N Li, T Zhang, D Dong, Y Yang… - Nature …, 2023 - nature.com
Ga2O3-based solar blind avalanche photodetectors exhibit low voltage operation, optical
filter-free and monolithic integration of photodetector arrays, and therefore they are …

In Situ Fabrication of PdSe2/GaN Schottky Junction for Polarization-Sensitive Ultraviolet Photodetection with High Dichroic Ratio

D Wu, M Xu, L Zeng, Z Shi, Y Tian, XJ Li, CX Shan… - ACS …, 2022 - ACS Publications
Polarization-sensitive ultraviolet (UV) photodetection is of great technological importance for
both civilian and military applications. Two-dimensional (2D) group-10 transition-metal …

Realizing nearly-zero dark current and ultrahigh signal-to-noise ratio perovskite X-ray detector and image array by dark-current-shunting strategy

P **, Y Tang, D Li, Y Wang, P Ran, C Zhou… - Nature …, 2023 - nature.com
Although perovskite X-ray detectors have revealed promising properties, their dark currents
are usually hundreds of times larger than the practical requirements. Here, we report a …

Metamaterial graphene photodetector with bandwidth exceeding 500 gigahertz

SM Koepfli, M Baumann, Y Koyaz, R Gadola, A Güngör… - Science, 2023 - science.org
Although graphene has met many of its initially predicted optoelectronic, thermal, and
mechanical properties, photodetectors with large spectral bandwidths and extremely high …

Carrier recombination suppression and transport enhancement enable high‐performance self‐powered broadband Sb2Se3 photodetectors

S Chen, Y Fu, M Ishaq, C Li, D Ren, Z Su, X Qiao… - InfoMat, 2023 - Wiley Online Library
Abstract Antimony selenide (Sb2Se3) is a promising candidate for photodetector
applications boasting unique material benefits and remarkable optoelectronic properties …

Fully depleted self‐aligned heterosandwiched van der Waals photodetectors

F Wang, Z Liu, T Zhang, M Long, X Wang… - Advanced …, 2022 - Wiley Online Library
Room‐temperature‐operating highly sensitive mid‐wavelength infrared (MWIR)
photodetectors are utilized in a large number of important applications, including night …

Large-area low-noise flexible organic photodiodes for detecting faint visible light

C Fuentes-Hernandez, WF Chou, TM Khan, L Diniz… - Science, 2020 - science.org
Silicon photodiodes are the foundation of light-detection technology; yet their rigid structure
and limited area scaling at low cost hamper their use in several emerging applications. A …

Optical metasurfaces for energy conversion

E Cortés, FJ Wendisch, L Sortino, A Mancini… - Chemical …, 2022 - ACS Publications
Nanostructured surfaces with designed optical functionalities, such as metasurfaces, allow
efficient harvesting of light at the nanoscale, enhancing light–matter interactions for a wide …