Graphene nanoribbon spin-photodetector
WebApr 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 ... 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 ...
Graphene nanoribbon spin-photodetector
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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 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 …
WebAug 13, 2024 · Furthermore, a graphene nanoribbon spin-photodetector was presented by Zamani et al, possessing high quantum efficiency with a maximum of approximately … WebPreparation of B-doped graphene NPs and p-si/n-B-doped graphene diode In a typical synthesis of boron doped graphene NPs, 5 mL of carbon tetrachloride and 52 μL of boron tribromide were placed into 100 mL Teflon-lined stainless-steel autoclave, then 1.0 g of metallic potassium was rapidly added to the autoclave in an air-filled dry glove box.
WebAug 19, 2014 · We show an armchair graphene nanoribbon channel connected between asymmetric ferromagnetic source-drain structure—i.e., p-type Co/Au/graphene source … WebMay 2, 2024 · The photodetector consists of a deep-depletion SiO 2 /Si well sandwiched between single-layer graphene (SLG) on top of the structure (for direct field-effect …
WebMar 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 …
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. images of white foldable tableWebLarge 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 ... list of cities of nepallist of cities of pakistanWebJul 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 ... images of white house christmas decorationsWebGraphene nanoribbon spin-photodetector Sara Zamani and Rouhollah Farghadan Department of Physics, University of Kashan, Kashan,87317-53153, Iran (Dated: … list of cities of canadaWebApr 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 … list of cities of nhl teamsWebJun 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 … list of cities of gujarat