Graphene-antenna sandwich photodetector
WebJun 30, 2024 · Position-sensitive detector (PSD) is an optical inspection device for the precise measurements of position, distance, angle, and other relevant physical variables. It is a widely used component in the fields of tracking, aerospace, nanorobotics, and so forth. Essentially, PSD is also a photodetector based on the lateral photovoltaic effect (LPE ... WebJan 30, 2016 · We report the fabrication and characteristics of a novel graphene-Ag 0 hybrid plasmonic nanostructure-based photodetector exhibiting moderately high responsivity …
Graphene-antenna sandwich photodetector
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WebJun 19, 2012 · Abstract. Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared … WebA multilayer metal-dielectric-metal nanostructure is proposed to enhance the absorption in graphene in a near-infrared region. The main feature of the structure is the generation of …
WebJun 15, 2012 · Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared photons into electrons … WebThe sandwiched photodetector achieved an internal quantum efficiency of up to 20% in the visible and near-infrared spectrums, and a responsivity of 13 mA W −1 . ... View in full …
WebAug 31, 2011 · We study photodetection in graphene near a local electrostatic gate, which enables active control of the potential landscape and carrier polarity. We find that a strong photoresponse only appears when and where a p–n junction is formed, allowing on–off control of photodetection. Photocurrents generated near p–n junctions do not require … WebDec 11, 2013 · We demonstrate the controlled enhancement of photoresponsivity in a graphene photodetector by coupling to slow light modes in a long photonic crystal linear defect cavity. Near the Brillouin zone (BZ) boundary, spectral coupling of multiple cavity modes results in broad-band photocurrent enhancement from 1530 nm to 1540 nm. …
WebABSTRACT: Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared photons into electrons …
WebJun 20, 2024 · Fig. 1d shows an optical microscope image for a fabricated photodetector based on gold-patched graphene nano-stripes; the photodetector has an active area of 30 × 30 μm 2. This figure also shows ... curl maker hairWebOct 1, 2024 · Fig. 3 shows a schematic diagram of the light detection mechanism under macroscopic light irradiation for the graphene photodetector with a Ni mask. When the device is entirely irradiated, electron–hole pairs are photo-excited in the graphene layer. These electrons and holes are spatially separated in the vicinity of the two … curl * mark bundle as not supporting multiuseWebCombining graphene with traditional plasmonic structures provides new opportunities and challenges. One particular application for. Graphene is a monolayer plasmonic material that has been widely studied in the area of plasmonics and nanophotonics. Combining graphene with traditional plasmonic structures provides new opportunities and challenges. curl maker machineWebMar 16, 2014 · The working principle of the graphene double-layer heterostructure photodetector can be understood through the device … curl mark bundle as not supporting multiuseWebAug 4, 2024 · Low-dimensional inorganic nanostructures such as quantum dots as well as one- and two-dimensional nanostructures are widely studied and already used in high-performance infrared photodetectors. These structures feature large surface-to-volume ratios, tunable light absorption, and electron-limiting effects. This article reviews the state … curl maker camille rose naturalsWebJan 25, 2024 · Nanometre-scale germanium photodetector enhanced by a near-infrared dipole antenna. ... (2012) Graphene-antenna sandwich photodetector. Nano Letters, 12(7), pp. 3808–3813. curlmart shippingWebOct 19, 2024 · This work was supported by National Key Research and Development Program of China (Nos. 2024YFA0205800 and 2024YFA0306200); National Natural Science Foundation of China (Nos. 61975223, 61874126, 91850208, 61991442, and 61521005); Hundred Talents Program of the Chinese Academy of Sciences (No. … curl market hours