Graphene-antenna sandwich photodetector

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August undefined, 2024

WebApr 1, 2014 · The photodetector based on germanium--graphene hybrid structure presents a new paradigm for the realization of small but high performance device in the process of … WebJun 20, 2024 · We demonstrate an on-chip ultrafast photodetector based on a two-dimensional heterostructure consisting of high-quality graphene encapsulated in hexagonal boron nitride. Coupled to the optical mode of a silicon waveguide, this 2D heterostructure-based photodetector exhibits a maximum responsivity of 0.36 A/W and high-speed …

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 … 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. … fix it pro clear coat applicator

Graphene-Antenna Sandwich Photodetector - figshare.com

WebMay 1, 2024 · In this paper, a graphene photodetector modified with both gold nanoparticles and silver nanoparticles was discussed. The performance of the photodetector was improved by the common electrode structure prepared by transferring graphene on the top of the device. ... Graphene-antenna sandwich photodetector. … WebJan 30, 2016 · To fabricate the plasmon-enhanced photodetector devices, graphene-Ag 0 hybrid solution was first spin coated on 300-nm-thick SiO 2 /Si (100) substrates. ... Ajayan PM, Nordlander P, Halas NJ (2012) Graphene-antenna sandwich photodetector. Nano Lett 12:3808. Article CAS Google Scholar Download references. Acknowledgments. This … WebMar 16, 2014 · The working principle of the graphene double-layer heterostructure photodetector can be understood through the device … cannabis life cycle timeline

Hot electron generation by aluminum oligomers in plasmonic

Position-sensitive detectors based on two-dimensional materials …

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 ... 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 … fix it program troubleshooting packagesWebGraphene-Antenna Sandwich Photodetector Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and … cannabis linkedin background

"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 … " - Graphene-antenna sandwich photodetector

Graphene-antenna sandwich photodetector

Gate-Activated Photoresponse in a Graphene p–n Junction

WebOct 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. … 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 ...

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Web目前,人们已经提出各种不同的方法来提高石墨烯在不同波段的吸收率。在波长较长中红外和远红外波段(对应自由空间波长约5～10μm),一种有效提高石墨烯的吸收率的方法是激发“石墨烯表面等离激元(Graphene surface plasmon polaritons,即GSPP)”。 WebGraphene-Antenna Sandwich Photodetector Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near …

WebJun 15, 2012 · Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared photons into electrons … WebJan 30, 2016 · We report the fabrication and characteristics of a novel graphene-Ag 0 hybrid plasmonic nanostructure-based photodetector exhibiting moderately high responsivity …

http://english.phy.pku.edu.cn/info/1031/4094.htm 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 …

WebNov 1, 2024 · Graphene-antenna sandwich photodetector. Nano Lett. (2012) M.L. Brongersma et al. Plasmon-induced hot carrier science and technology. Nat. Nanotechnol. (2015) A. Manjavacas et al. Plasmon-induced hot carriers in metallic nanoparticles. ACS Nano (2014) B. Luk'yanchuk et al.

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 … fix it pro garden cityhttp://english.phy.pku.edu.cn/info/1031/4094.htm cannabis litigation attorney bellinghamWebHowever, the bandwidth and response time for this type of graphene photodetector are restricted by the narrow spectral bandwidth and long carrier trapping times of the quantum dots. ... Fang ZY, et al. Graphene–antenna sandwich photodetector. Nano Lett. 2012; 12:3808–3813. doi: 10.1021/nl301774e. [Google Scholar] 29. Yao Y, et al. High ... fix it program ocean countyWebNano Letters on line published plasmonic enhanced Graphene-Antenna Sandwich Photodetector investigation. (Nano Letters 2012, 12, doi: 10.1021/nl301774e) Nanoscale antennas sandwiched between two graphene monolayers yield a photodetector that efficiently converts visible and near-infrared photons intoelectrons with an 800% … fix it pro pen walmartWebAug 4, 2024 · The basic approaches towards infrared detection are summarized. Furthermore, a selection of very important and special nanostructured materials and their … cannabis lipstickWebSep 15, 2024 · 2D material-plasmonic hybrid photodetectors. A, Photocurrent measurements of the graphene-antenna sandwich photodetector obtained along the line-scan direction with different antenna geometries. Data from the control device without an Au antenna are also presented. The inset is a schematic of the device, with the zero point … cannabis litchfield ilWebJul 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 ... cannabis light online shop