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 …

Hot carriers in graphene–fundamentals and applications

M Massicotte, G Soavi, A Principi, KJ Tielrooij - Nanoscale, 2021 - pubs.rsc.org
Hot charge carriers in graphene exhibit fascinating physical phenomena, whose
understanding has improved greatly over the past decade. They have distinctly different …

Intelligent infrared sensing enabled by tunable moiré quantum geometry

C Ma, S Yuan, P Cheung, K Watanabe, T Taniguchi… - Nature, 2022 - nature.com
Quantum geometric properties of Bloch wave functions in solids, that is, Berry curvature and
the quantum metric, are known to significantly influence the ground-and excited-state …

Graphene charge-injection photodetectors

W Liu, J Lv, L Peng, H Guo, C Liu, Y Liu, W Li, L Li… - Nature …, 2022 - nature.com
Charge-coupled devices are widely used imaging technologies. However, their speed is
limited due to the complex readout process, which involves sequential charge transfer …

Synergistic-potential engineering enables high-efficiency graphene photodetectors for near-to mid-infrared light

H Jiang, J Fu, J Wei, S Li, C Nie, F Sun, QYS Wu… - Nature …, 2024 - nature.com
High quantum efficiency and wide-band detection capability are the major thrusts of infrared
sensing technology. However, bulk materials with high efficiency have consistently …

Enhanced Photogating Effect in Graphene Photodetectors via Potential Fluctuation Engineering

H Jiang, J Wei, F Sun, C Nie, J Fu, H Shi, J Sun… - ACS …, 2022 - ACS Publications
The photogating effect in hybrid structures has manifested itself as a reliable and promising
approach for photodetectors with ultrahigh responsivity. A crucial factor of the photogating …

Controlling photothermoelectric directional photocurrents in graphene with over 400 GHz bandwidth

SM Koepfli, M Baumann, R Gadola… - Nature …, 2024 - nature.com
Photodetection in the near-and mid-infrared spectrum requires a suitable absorbing material
able to meet the respective targets while ideally being cost-effective. Graphene, with its …

H‐BN‐encapsulated uncooled infrared photodetectors based on tantalum nickel selenide

S Zhang, L Han, K **ao, L Zhang, C Shi… - Advanced Functional …, 2023 - Wiley Online Library
Uncooled broadband spectrum detection, spanning from visible to mid‐wave‐infrared
regions, offers immense potential for applications in environmental monitoring, optical …

Heterogeneously integrated graphene/silicon/halide waveguide photodetectors toward chip-scale zero-bias long-wave infrared spectroscopic sensing

Y Ma, Y Chang, B Dong, J Wei, W Liu, C Lee - ACS nano, 2021 - ACS Publications
Mid-infrared absorption spectroscopy plays an important role in molecule identification and
quantification for widespread applications. Integrated photonics provides opportunities to …

Macroscopic assembled graphene nanofilms based room temperature ultrafast mid‐infrared photodetectors

L Peng, L Liu, S Du, SC Bodepudi, L Li, W Liu, R Lai… - InfoMat, 2022 - Wiley Online Library
Graphene with linear energy dispersion and weak electron–phonon interaction is highly
anticipated to harvest hot electrons in a broad wavelength range. However, the limited …