Results 91 to 100 of about 42,370 (298)

Silicon and Hybrid Silicon Photodetectors for Photonic Integrated Circuits

open access: yes, 2012
We will review our recent progress in developing silicon and hybrid silicon photodetectors for photonic integrated circuits. Specifically, we will discuss waveguide-coupled photodetectors using epitaxial III-V growth on silicon, and all-silicon surface ...
Shaoqi Feng   +11 more
core   +1 more source

Telecom InP-based quantum dash photodetectors grown on Si

open access: yes, 2021
Photodetectors on Si with high responsivity, large bandwidth, and multispectral operation are required for high data rate communications using Si photonics. We report characteristics of InP-based quantum dash (QDash) photodetectors with a p-i-n structure
Hon Ki Tsang   +13 more
core   +1 more source

Directing Near‐Perfect (001) Orientation in Wafer‐Scale BiOI Thin Films via Halide‐Mediated van der Waals Stacking

open access: yesAdvanced Materials, EarlyView.
Our work introduces a new framework that fundamentally changes how orientation in bismuth oxyhalide systems is approached. Comprehensive experiments, backed by theoretical models, reveal the pivotal role of halide anions to modify the van der Waals stacking energies required to direct orientation. Our method enables the fabrication of near perfect (001)
Gabriel Aygur   +10 more
wiley   +1 more source

Metal‐Semiconductor Phase Transition in Multilayer VSe2 for Broadband Photodetector with High Sensitivity

open access: yesAdvanced Electronic Materials
2D 1T‐VSe2 is a charge‐density wave (CDW) system that also exhibits room‐temperature ferromagnetism, making it promising for photodetecting devices.
Yujue Yang   +8 more
doaj   +1 more source

InP-based waveguide integrated photodetectors

open access: yes, 2022
S.256-257Resent results of InP-based waveguide integrated photodetectors are reviewed.
Runge, P.   +5 more
core   +1 more source

Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction

open access: yesAdvanced Materials, EarlyView.
A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu   +8 more
wiley   +1 more source

Long-wavelength intersubband quantum disc-in-nanowire photodetectors with normal incidence photoresponse [Elektronisk resurs]

open access: yes, 2018
Semiconductor nanowire (NW) technology has emerged as a key facilitator of novel optoelectronics e.g. solar cells, photodetectors and LEDs. The functional wavelength range of current NW-based photodetectors is typically limited to the visible/ near ...
Pettersson, Håkan,   +5 more
core  

Spectral Selective and Low‐Noise Thin‐Film Organic Photodetectors Enabled by Electric‐Field Engineering

open access: yesAdvanced Materials, EarlyView.
Molecular doping redistributes the internal electric field in organic photodetectors, providing a new degree of freedom to spatially control carrier transport and collection. Simulations and experiments reveal distinct transport pathways for injected and photogenerated carriers, enabling low dark current under reverse bias and wavelength‐selective ...
Jingwei Yi   +15 more
wiley   +1 more source

Strong Coupling in Bulk Nanoplasmonic Nanoplatelet Perovskite Scintillators

open access: yesAdvanced Materials, EarlyView.
A bulk scintillating nanocomposite is engineered from CsPbBr3 nanoplatelets and Ag nanocubes to support exciton–plasmon strong coupling under X‐ray excitation. The resulting hybrid polaritonic states appear directly in radioluminescence, opening a route toward polariton‐enabled scintillator design beyond conventional Purcell enhancement.
Michal Makowski   +13 more
wiley   +1 more source

Advances in InX (X: As, Sb) Quantum Dots Infrared Photodetectors

open access: yesPhotonic Sensors
Infrared photodetectors exhibit significant applications in the fields, such as the defense military, industry, and consumer electronics. Leveraging the advantages, like adjustable bandgap, high carrier mobility, solution processing ability, and low cost,
Huiling TAI   +3 more
doaj   +1 more source

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