Bandgap engineering of two-dimensional semiconductor materials

A Chaves, JG Azadani, H Alsalman… - npj 2D Materials and …, 2020 - nature.com
Semiconductors are the basis of many vital technologies such as electronics, computing,
communications, optoelectronics, and sensing. Modern semiconductor technology can trace …

Exciton physics and device application of two-dimensional transition metal dichalcogenide semiconductors

T Mueller, E Malic - npj 2D Materials and Applications, 2018 - nature.com
Two-dimensional group-VI transition metal dichalcogenide semiconductors, such as MoS2,
WSe2, and others, exhibit strong light-matter coupling and possess direct band gaps in the …

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 …

Ultrafast machine vision with 2D material neural network image sensors

L Mennel, J Symonowicz, S Wachter, DK Polyushkin… - Nature, 2020 - nature.com
Abstract Machine vision technology has taken huge leaps in recent years, and is now
becoming an integral part of various intelligent systems, including autonomous vehicles and …

Curved neuromorphic image sensor array using a MoS2-organic heterostructure inspired by the human visual recognition system

C Choi, J Leem, M Kim, A Taqieddin, C Cho… - Nature …, 2020 - nature.com
Conventional imaging and recognition systems require an extensive amount of data storage,
pre-processing, and chip-to-chip communications as well as aberration-proof light focusing …

Photocurrent as a multiphysics diagnostic of quantum materials

Q Ma, R Krishna Kumar, SY Xu, FHL Koppens… - Nature Reviews …, 2023 - nature.com
The photoexcitation life cycle from incident photon (and creation of photoexcited electron–
hole pair) to ultimate extraction of electrical current is a complex multiphysics process …

Approaching the intrinsic exciton physics limit in two-dimensional semiconductor diodes

P Chen, TL Atallah, Z Lin, P Wang, SJ Lee, J Xu… - Nature, 2021 - nature.com
Abstract Two-dimensional (2D) semiconductors have attracted intense interest for their
unique photophysical properties, including large exciton binding energies and strong gate …

Twist Angle-Dependent Intervalley Charge Carrier Transfer and Recombination in Bilayer WS2

Y Zhu, OV Prezhdo, R Long… - Journal of the American …, 2023 - ACS Publications
A twist angle at a van der Waals junction provides a handle to tune its optoelectronic
properties for a variety of applications, and a comprehensive understanding of how the twist …

Ultrafast intrinsic optical-to-electrical conversion dynamics in a graphene photodetector

K Yoshioka, T Wakamura, M Hashisaka, K Watanabe… - Nature …, 2022 - nature.com
Optical-to-electrical conversion in graphene is a central phenomenon for realizing
anticipated ultrafast and low-power-consumption information technologies. However …

2D homojunctions for electronics and optoelectronics

F Wang, K Pei, Y Li, H Li, T Zhai - Advanced Materials, 2021 - Wiley Online Library
In the post‐Moore era, 2D materials with rich physical properties have attracted widespread
attention from the scientific and industrial communities. Among 2D materials, the 2D …