Graphene nanoribbon spin-photodetector

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August undefined, 2024

WebINIS Repository Search provides online access to one of the world's largest collections on the peaceful uses of nuclear science and technology. The International Nuclear Information System is operated by the IAEA in collaboration with over 150 members. WebUnit cells are marked with the rectangle boxes drawn with a dotted lines and (m, n) denotes the dimensions of a particular unit cell. from publication: Graphene Nanoribbon Spin-Photodetector We ...

Atomic Scale Investigation of a Graphene Nano-ribbon Based

WebApr 12, 2024 · By cutting graphene into a quasi-one-dimensional strip, a graphene nanoribbon (GNR), a bandgap can be opened through quantum confinement of the … WebIntroduction. Graphene is a one-atomic-layer thick two-dimensional material made of carbon atoms arranged in a honeycomb structure. Its fascinating electrical, optical, and mechanical properties ignited enormous interdisciplinary interest from the physics, chemistry, and materials science fields. 1–3 The newly discovered properties pave the way to … solar breeze pool cleaner

Photodetectors based on graphene, other two-dimensional

WebAug 18, 2014 · OSTI.GOV Journal Article: Dual function armchair graphene nanoribbon-based spin-photodetector: Optical spin-valve and light helicity detector Journal Article: … WebJul 15, 2024 · 1. Introduction. The exploration of carbon-based nanomaterials began in the 1980s with the invention of fullerenes. After introducing graphene in 2004, the research … WebDec 22, 2024 · December 22, 2024. Researchers at Berkeley Lab and UC Berkeley have discovered how to directly measure the unique magnetic properties of superthin graphene nanoribbons. The breakthrough could lead to high-speed, low-power nanoscale data storage technologies. Scanning tunneling microscopy image of a zigzag graphene nanoribbon. solarbrokers columbus ohio

Graphene Nanoribbons: Production and Applications - Sigma-Aldrich

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WebJul 1, 2024 · Graphene nanoribbon spin-photodetector. Phys. Rev. Appl. (2024) Xuechao Zhai et al. Valley-locked thermospin effect in silicene and germanene with asymmetric magnetic field induced by ferromagnetic proximity effect. Phys. Rev. B (2024) Xuechao Zhai et al. Valley–spin seebeck effect in heavy group-iv monolayers. WebDec 22, 2024 · A successful strategy for synthesizing a six-atom-wide graphene nanoribbon on a gold surface was proposed and tested in 2016 9. However, the magnetic edge states were not found using this set-up ... solar bubble dryer priceWebFeb 3, 2024 · In the last decade, graphene photodetectors have been introduced and investigated in many works. In any photodetector, the separation of the photo-excited … solar brick lights for driveway

"WebLarge area Raman mapping indicated high uniformity ({\textgreater}97\% coverage) of monolayer graphene with immeasurable defects ({\textgreater}95\% defect-negligible) across the entire wafer. Key to these results is the phase transition of evaporated copper films from amorphous to (111) preferred crystalline, which resulted in subsequent ... " - Graphene nanoribbon spin-photodetector

Graphene nanoribbon spin-photodetector

Graphene quantum interference photodetector - PubMed

WebThere is an energy difference between spin orientations in the outer orbital of the nitrogen atom, which can be detected and used as a probe for the magnetism at the edges of the nanoribbon. “The edge states can be clearly visualized, even when the nanoribbons are adsorbed on gold.” Graphene nanoribbon Nitrogen atom Hydrogen atom Carbon atom WebMar 24, 2016 · Illustration of a graphene nanoribbon with zigzag edges and the precursor molecules used in its manufacture. Electrons on the two zigzag edges display opposite directions of rotation (spin ...

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Webproperties.22–30 Graphene in its 1D form, the so called graphene nanoribbon (GNR), has also been intensively investigated as a promising material for realization of nanoelectronics and spintronic nanodevices.31–41 These features are due to graphe-ne's (hence GNRs') long spin relaxation and decoherence times WebGraphene Nanoribbon Spin-Photodetector @article{Zamani2024GrapheneNS, title={Graphene Nanoribbon Spin-Photodetector}, author={Sara Zamani and Rouhollah Farghadan}, journal={Physical Review Applied}, year={2024} } S. Zamani, R. Farghadan; Published 26 September 2024; Physics;

WebSep 18, 2024 · STS revealed an electronic bandgap of 1.38 eV for this new graphene-like nanoribbon, and the lowest unoccupied and highest occupied states were mainly distributed around the four- and eight-membered rings, respectively. Recently, ... The spin state was preserved, while the magnetic anisotropy was modified depending on the … WebFeb 15, 2024 · We present the results of a numerical study on the characteristics of MoS2-based field-effect photodetectors (FEPhDs). These FEPhDs consist of 12-nm-long and …

WebSep 26, 2024 · We introduce a concept to generate spin-polarized currents in graphene nanoribbons by using light radiation and a significant electron-electron interaction. WebSep 26, 2024 · Generating highly spin-polarized current is one of the main quests in spintronics. The authors design and theoretically benchmark a spin-photovoltaic device …

WebJun 3, 2024 · Dynamic Control of High-Range Photoresponsivity in a Graphene Nanoribbon Photodetector Nanoscale Res Lett. 2024 Jun 3;15(1) :124. doi ... This photoresponsivity is about two orders of magnitude higher compared to that of a previous graphene-based photodetector. The photodetector exhibits a wide-range tunability via …

WebIn P configuration, the electron tunneling channels for both α- and β-spin states are almost blocked off completely, but in AP configuration, the bias-polarity-dependent spin-polarized current ... slumberland furniture benton harbor miWebpatched graphene nanostripes to achieve photodetectors with high responsivity (0.6AW−1 at 0.8 mm and 11.5AW −1 at 20 mm) and ultrafast operation speed exceeding 50GHz from the visible to infrared regime [28]. Furthermore, a graphene nanoribbon spin-photodetector was presented by Zamani et al, possessing high quantum efﬁciency … solar bubble pool coverWebJul 15, 2024 · Photodetectors with zigzag and armchair graphene nanoribbon channels and asymmetric source and drain contacts: detectors for visible and solar blind applications. J. Appl ... Dual function armchair graphene nanoribbon-based spin-photodetector: optical spin-valve and light helicity detector. Appl. Phys. Lett., 105 (2014), p. 072407. CrossRef ... slumberland furniture brookingsWebApr 7, 2024 · An excellent photodetector (PD) can recognize all the properties of light, including intensity, frequency, and polarization. PDs capable of detecting polarized light need a specific optical structure or crystal structure. Lately, perovskite was used in polarization-sensitive PDs due to its controllable orientation growth and crystal structure ... solar bubbler fountains for hummingbirdsWebWe demonstrate tunable graphene nanoribbon-based photodetector for the wavelength range 5–12 μm. We leverage the width dependence of bandgap in nanoribbons, and … slumberland furniture care protection planWebMar 12, 2015 · Abstract. In this work, a graphene quantum interference (QI) photodetector was simulated in two regimes of operation. The structure consists of a graphene nanoribbon, Mach-Zehnder interferometer (MZI), which exhibits a strongly resonant transmission of electrons of specific energies. In the first regime of operation (that of a … solar brite flood lightsWebWe introduce a concept to generate spin-polarized currents in graphene nanoribbons by using light radiation and a significant electron-electron interaction. For this purpose, we … slumberland furniture cedar falls ia