Results 51 to 60 of about 42,370 (298)

Recent advances on organic‐inorganic hybrid perovskite photodetectors with fast response

open access: yesInfoMat, 2019
In the last decade, optoelectronic devices based on organic‐inorganic hybrid perovskite (OIHP) materials, which have unique advantages of direct bandgap, large absorption coefficient, low density of defects, long charge carrier lifetime, diffusion length,
Yan Zhao, Chenglong Li, Liang Shen
doaj   +1 more source

Ultrahigh-speed graphene-based optical coherent receiver

open access: yesNature Communications, 2021
Graphene-based photodetectors have many advantages for applications. Here, the authors demonstrate a high-speed optical coherent receiver for optical communications based on graphene-on-plasmonic slot waveguide photodetectors.
Yilun Wang   +11 more
doaj   +1 more source

Circularly Polarized Electroluminescence and Spin‐Polarized Carrier Transport in Chiral‐Doped Polymer Films

open access: yesAdvanced Functional Materials, EarlyView.
Chiral dopants induce supramolecular chirality in an achiral polymer (PFO), generating spin‐polarized carriers via the chiral‐induced spin selectivity (CISS) and suggesting a possible contribution of Spin‐polarized carrier transport to circularly polarized electroluminescence (CPEL).
Kazuyuki Asahi   +4 more
wiley   +1 more source

Photodetectors with a Bipolar Stacked Structure and Their Application

open access: yesAdvanced Devices & Instrumentation
Bipolar photodetectors are a type of photodetector that utilizes bipolar heterojunctions to convert light into electrical signals. They are well suited for a variety of optoelectronic signal conversion applications because of their wide-spectrum ...
Dan Zhao   +4 more
doaj   +1 more source

A New Strategy for Creating Quantum Light Emitters Via Post‐Growth Hydrogen‐Ion Irradiation of III‐V Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
A post‐growth method is demonstrated to realize energy‐tunable quantum emitters in GaAs/GaAsN/GaAs core–multishell nanowires on a Si substrate. By combining the N‐induced bandgap reduction with H‐ion irradiation, the GaAsN potential landscape is engineered, enabling isolated, narrow emission lines that function as single‐photon sources with g(2)(0) ∼ 0.
Akant Sagar Sharma   +10 more
wiley   +1 more source

III–V nanowires on silicon (100) as plasmonic-photonic hybrid meta-absorber

open access: yesScientific Reports, 2021
Integration of functional infrared photodetectors on silicon platforms has been gaining attention for diverse applications in the fields of imaging and sensing. Although III–V semiconductor is a promising candidate for infrared photodetectors on silicon,
Hyunseok Kim   +3 more
doaj   +1 more source

Sb(2)O(3) nanobelt networks for excellent visible-light-range photodetectors

open access: yes, 2011
Excellent photoconductive properties have been found in Sb(2)O(3) nanobelts synthesized by a surfactant-assisted solvothermal method. Visible-light photodetectors have been designed from Sb(2)O(3) nanobelt networks using micrometer-wide gold wires as ...
Liao, M. Y.   +19 more
core   +1 more source

Multiplier Effects of Photodetectors—Source of Gain

open access: yes, 2023
A photodetector is a type of optoelectronic device with excellent photoelectric conversion abilities, which has especially important applications in many fields such as optical communication, image sensing, aerospace/environmental detection, and military
Ming Yang   +3 more
core   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin   +6 more
wiley   +1 more source

High-detectivity tin disulfide nanowire photodetectors with manipulation of localized ferroelectric polarization field

open access: yesNanophotonics, 2021
Tin sulfide semiconductor nanowires (NWs) have been widely investigated for photodetection applications because of their good optical and electrical properties.
Zheng Dingshan   +13 more
doaj   +1 more source

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