Electron Transport Parameters Study for Transition Metal-Doped Armchair Graphene Nanoribbon via Acoustical Phonon Interactions

Pandya, Ankur; Jha, Prafulla K.

doi:10.1007/s11664-016-5274-y

Cited by 16 publications

(3 citation statements)

References 47 publications

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“…It is possible to further enhance electronic transport properties of GNR with dopant adatoms [22][23][24][25][26] -that may help to fabricate graphene-based P-N nanodevices [27] as well as the surface acoustic wave sensors [28] at nanoscale. Moreover, it has also been proposed by several research groups that the doping of boron and nitrogen in graphene exhibits the possibility of engineering the graphene-based p-n junction at nanoscale as well as graphene aerogels for oxygen electro-catalysis [29,30] wherein boron being trivalent and nitrogen being pentavalent impurities introduce the energy bandgap.…”

Section: Photonic Devices At Nanoscalementioning

confidence: 99%

Graphene-Based Nanophotonic Devices

Pandya¹,

Sorathiya²,

Lavadiya³

2020

Recent Advances in Nanophotonics - Fundamentals and Applications

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Graphene is an ideal 2D material that breaks the fundamental properties of size and speed limits by photonics and electronics, respectively. Graphene is also an ideal material for bridging electronic and photonic devices. Graphene offers several functions of modulation, emission, signal transmission, and detection of wideband and short band infrared frequency spectrum. Graphene has improved human life in multiple ways of low-cost display devices and touchscreen structures, energy harvesting devices (solar cells), optical communication components (modulator, polarizer, detector, laser generation). There is numerous literature is available on graphene synthesis, properties, devices, and applications. However, the main interest among the scientist, researchers, and students to start with the numerical and computational process for the graphene-based nanophotonic devices. This chapter also includes the examples of graphene applications in optoelectronics devices, P-N junction diodes, photodiode structure which are fundamental devices for the solar cell and the optical modulation.

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Section: Photonic Devices At Nanoscalementioning

confidence: 99%

Graphene-Based Nanophotonic Devices

Pandya¹,

Sorathiya²,

Lavadiya³

2020

Recent Advances in Nanophotonics - Fundamentals and Applications

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“…The probability per unit time that a carrier with initial momentum k scatters to a final state with a crystal momentum k ′ is determined by the carrier transition rate and is derived by Fermi's golden rule [67][68][69]:…”

Section: The Adp Scattering Mechanismmentioning

confidence: 99%

Band gap determination of graphene, h-boron nitride, phosphorene, silicene, stanene, and germanene nanoribbons

Pandya

Sangani

Jha

2020

J. Phys. D: Appl. Phys.

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The energy band gap of graphene, h-boron nitride, stanene, silicene, germanene, and phosphorene nanoribbons is investigated theoretically with two approaches. In the first approach, a set of equations to calculate the energy band gap of nanoribbons is deduced using the expression of Fermi velocity. The size dependency of the energy band gap so obtained confirms previous expressions. The second approach, however, determines resistivity by directly connecting quantity to the energy band gap using an electron-acoustical phonon scattering mechanism. For the calculation of the energy band gap and resistivity, the armchair configuration of nanoribbons is considered. It is observed that the transverse magnetic field influences the energy band gap and resistivity. The magnitude of the band gap is negative up to a certain value of the field and turns positive at a sufficiently higher field. The negative band gap can be interpreted as metallic behavior of the materials. The results of the work are useful in the determination of the energy band gap of nanoribbons for their nanoelectronic and optoelectronic applications as well as tuning the band gap using the applied magnetic field.

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“…On the other hand, graphene being a bidimensional material of atomic thickness (0.34 nm) [16] has attracted a lot of attention in different areas of science for its interesting optical [17], thermal [18], electronic [19] and phononic [20] properties. Currently, there are some reports on graphene deposited on thin metal films to be used as a biosensor based on surface plasmons resonance (SPR) [21], furthermore, recent studies show that this material possesses plasmonic properties [22], especially at midinfrared (MIR) [23] and terahertz (THz) [24] frequencies.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic resonances in hybrid systems of aluminum nanostructured arrays and few layer graphene within the UV–IR spectral range

2017

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The size-controllable and ordered Al nanocavities and nanodomes arrays were synthesized by electrochemical anodization of aluminum using phosphoric acid, citric acid and mixture both acids. Few layer graphene (FLG) was transferred directly on top of Al nanostructures and their morphology were evaluated by scanning electron microscopy. The interaction between FLG and the plasmonic properties of Al nanostructures arrays were investigated based on specular reflectivity in the ultraviolet-visible-infrared range and Raman spectroscopy. We found that their optical reflectivity was dramatically reduced as compared with unstructured Al. At the same time pronounced reflectivity dips were detectable in the 200-896 nm wavelength range, which were ascribed to plasmonic resonances. The plasmonic properties of these nanostructures do not exhibit evident changes by the presence of FLG in the UV-vis range of the electromagnetic spectrum. By contrast, the surface-enhanced Raman spectroscopy of FLG was observed in nanocavities and nanodomes structures that result in an intensity increase of the characteristic G and 2D bands of FLG induced by the plasmonic properties of Al nanostructures.

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Electron Transport Parameters Study for Transition Metal-Doped Armchair Graphene Nanoribbon via Acoustical Phonon Interactions

Cited by 16 publications

References 47 publications

Graphene-Based Nanophotonic Devices

Graphene-Based Nanophotonic Devices

Band gap determination of graphene, h-boron nitride, phosphorene, silicene, stanene, and germanene nanoribbons

Plasmonic resonances in hybrid systems of aluminum nanostructured arrays and few layer graphene within the UV–IR spectral range

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