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 …

Photonic van der Waals integration from 2D materials to 3D nanomembranes

Y Meng, J Feng, S Han, Z Xu, W Mao, T Zhang… - Nature Reviews …, 2023 - nature.com
The integration of functional nanomaterials and heterostructures with photonic architectures
has laid the foundation for important photonic and optoelectronic applications. The advent of …

Miniaturized spectrometers with a tunable van der Waals junction

HH Yoon, HA Fernandez, F Nigmatulin, W Cai, Z Yang… - Science, 2022 - science.org
Miniaturized computational spectrometers, which can obtain incident spectra using a
combination of device spectral responses and reconstruction algorithms, are essential for on …

Computational event-driven vision sensors for in-sensor spiking neural networks

Y Zhou, J Fu, Z Chen, F Zhuge, Y Wang, J Yan… - Nature …, 2023 - nature.com
Neuromorphic event-based image sensors capture only the dynamic motion in a scene,
which is then transferred to computation units for motion recognition. This approach …

Broadband convolutional processing using band-alignment-tunable heterostructures

L Pi, P Wang, SJ Liang, P Luo, H Wang, D Li, Z Li… - Nature …, 2022 - nature.com
Broadband convolutional processing is critical to high-precision image recognition and is of
use in remote sensing and environmental monitoring. Implementing in-sensor broadband …

Low‐dimensional‐materials‐based photodetectors for next‐generation polarized detection and imaging

W **n, W Zhong, Y Shi, Y Shi, J **g, T Xu… - Advanced …, 2024 - Wiley Online Library
The vector characteristics of light and the vectorial transformations during its transmission
lay a foundation for polarized photodetection of objects, which broadens the applications of …

Helical polymers for dissymmetric circularly polarized light imaging

I Song, J Ahn, H Ahn, SH Lee, J Mei, NA Kotov, JH Oh - Nature, 2023 - nature.com
Control of the spin angular momentum (SAM) carried in a photon provides a technologically
attractive element for next-generation quantum networks and spintronics,,,–. However, the …

Photogating-assisted tunneling boosts the responsivity and speed of heterogeneous WSe2/Ta2NiSe5 photodetectors

M Liu, J Wei, L Qi, J An, X Liu, Y Li, Z Shi, D Li… - Nature …, 2024 - nature.com
Photogating effect is the dominant mechanism of most high-responsivity two-dimensional
(2D) material photodetectors. However, the ultrahigh responsivities in those devices are …

Silicon/2D-material photodetectors: from near-infrared to mid-infrared

C Liu, J Guo, L Yu, J Li, M Zhang, H Li, Y Shi… - Light: Science & …, 2021 - nature.com
Abstract Two-dimensional materials (2DMs) have been used widely in constructing
photodetectors (PDs) because of their advantages in flexible integration and ultrabroad …

Recent progress on electrical and optical manipulations of perovskite photodetectors

F Wang, X Zou, M Xu, H Wang, H Wang… - Advanced …, 2021 - Wiley Online Library
Photodetectors built from conventional bulk materials such as silicon, III–V or II–VI
compound semiconductors are one of the most ubiquitous types of technology in use today …