Graphene-antenna sandwich photodetector
WebJun 19, 2012 · Abstract. Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared … 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 ...
Graphene-antenna sandwich photodetector
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WebGraphene-Antenna Sandwich Photodetector Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and … WebMay 14, 2015 · In this letter, the Raman spectroscopy is used to study the interaction between the graphene and GNPs. Different structures of graphene combined with GNPs were prepared at first, including the pure …
WebJun 19, 2012 · Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared photons into electrons … WebJul 1, 2015 · Nowadays, nanoscience, nanofabrication technologies and versatile materials have sparked a new vision of UV photodetectors, which move toward higher precision, lower energy consumption and greater ...
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. … WebWe report on an integrated plasmonic ultraviolet (UV) photodetector composed of aluminum Fano-resonant heptamer nanoantennas deposited on a Gallium Nitride (GaN) active layer which is grown on a sapphire substrate to generate significant photocurrent via formation of hot electrons by nanoclusters upon the decay of nonequilibrium plasmons. …
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WebOct 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 … ta tga q500 manualWebJun 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 ... 3d繪圖軟體 免費中文版WebA metallic nanoantenna, under resonant illumination, injects nonequilibrium hot electrons into a nearby graphene structure, effectively doping the material. A prominent change in carrier density was observed for a … 3d聊天室WebSep 1, 2024 · E, SEM image of the graphene-antenna sandwich photodetector in which a single gold heptamer sandwiched between two monolayer graphene sheets. ... Design strategies for two‐dimensional material ... 3d繪圖軟體推薦WebJun 13, 2024 · Since the discovery of graphene, its applications to electronic and optoelectronic devices have been intensively and thoroughly researched. Extraordinary and unusual electronic and optical properties … tat garena tu khoi dongWebJan 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. ta tga trainingWebThe 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 … 3d 背景画像