Growth, photoluminescence, lifetime, and laser damage threshold studies of 1, 3, 5-triphenylbenzene (TPB) single crystal for scintillation application

Murugesan, Manikandan; Rajesh, P.; Ramasamy, P.; Kumar, Maurya Kamlesh

doi:10.1007/s00339-020-03578-3

Cited by 22 publications

(9 citation statements)

References 37 publications

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“…The intensity of the light irradiation is W/ , and is certainly within the experimental reach. Since much higher light intensities have been used in several other recent works 42 , 43 , we strongly believe that our chosen intensity will no longer damage the physical system.…”

Section: Resultsmentioning

confidence: 95%

Possible route to efficient thermoelectric applications in a driven fractal network

Mondal

Ganguly

Maiti

2021

Sci Rep

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An essential attribute of many fractal structures is self-similarity. A Sierpinski gasket (SPG) triangle is a promising example of a fractal lattice that exhibits localized energy eigenstates. In the present work, for the first time we establish that a mixture of both extended and localized energy eigenstates can be generated yeilding mobility edges at multiple energies in presence of a time-periodic driving field. We obtain several compelling features by studying the transmission and energy eigenvalue spectra. As a possible application of our new findings, different thermoelectric properties are discussed, such as electrical conductance, thermopower, thermal conductance due to electrons and phonons. We show that our proposed method indeed exhibits highly favorable thermoelectric performance. The time-periodic driving field is assumed through an arbitrarily polarized light, and its effect is incorporated via Floquet-Bloch ansatz. All transport phenomena are worked out using Green’s function formalism following the Landauer–Büttiker prescription.

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Section: Resultsmentioning

confidence: 95%

Possible route to efficient thermoelectric applications in a driven fractal network

Mondal

Ganguly

Maiti

2021

Sci Rep

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“…The intensity of the light irradiation is ∼ 10 5 W/m 2 , and is certainly within the experimental reach. Since much higher light intensities have been used in several other recent works 40,41 , we strongly believe that our chosen intensity will no longer damage the physical system.…”

Section: Resultsmentioning

confidence: 97%

A driven fractal network: Possible route to efficient thermoelectric application

Mondal,

Ganguly,

Maiti

2021

Preprint

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An essential attribute of many fractal structures is self-similarity. A Sierpinski gasket (SPG) triangle is a promising example of a fractal lattice that exhibits localized energy eigenstates. In the present work, for the first time we establish that a mixture of both extended and localized energy eigenstates can be generated yeilding mobility edges at multiple energies in presence of a timeperiodic driving field. We obtain several compelling features by studying the transmission and energy eigenvalue spectra. As a possible application of our new findings, different thermoelectric properties are discussed, such as electrical conductance, thermopower, thermal conductance due to electrons and phonons. We show that our proposed method indeed exhibits highly favorable thermoelectric performance. The time-periodic driving field is assumed through an arbitrarily polarized light, and its effect is incorporated via Floquet-Bloch ansatz. All transport phenomena are worked out using Green's function formalism following the Landauer-Büttiker prescription.

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“…It corresponds to the regime of near-ultraviolet/extreme ultraviolet. The light intensity is ∼

W/m

, and it is far below the upper limit of experimentally realizable intensities [ 86 , 87 ]. The chosen intensity does not damage the physical system.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Possible Routes to Obtain Enhanced Magnetoresistance in a Driven Quantum Heterostructure with a Quasi-Periodic Spacer

et al. 2021

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In this work, we perform a numerical study of magnetoresistance in a one-dimensional quantum heterostructure, where the change in electrical resistance is measured between parallel and antiparallel configurations of magnetic layers. This layered structure also incorporates a non-magnetic spacer, subjected to quasi-periodic potentials, which is centrally clamped between two ferromagnetic layers. The efficiency of the magnetoresistance is further tuned by injecting unpolarized light on top of the two sided magnetic layers. Modulating the characteristic properties of different layers, the value of magnetoresistance can be enhanced significantly. The site energies of the spacer is modified through the well-known Aubry–André and Harper (AAH) potential, and the hopping parameter of magnetic layers is renormalized due to light irradiation. We describe the Hamiltonian of the layered structure within a tight-binding (TB) framework and investigate the transport properties through this nanojunction following Green’s function formalism. The Floquet–Bloch (FB) anstaz within the minimal coupling scheme is introduced to incorporate the effect of light irradiation in TB Hamiltonian. Several interesting features of magnetotransport properties are represented considering the interplay between cosine modulated site energies of the central region and the hopping integral of the magnetic regions that are subjected to light irradiation. Finally, the effect of temperature on magnetoresistance is also investigated to make the model more realistic and suitable for device designing. Our analysis is purely a numerical one, and it leads to some fundamental prescriptions of obtaining enhanced magnetoresistance in multilayered systems.

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Growth, photoluminescence, lifetime, and laser damage threshold studies of 1, 3, 5-triphenylbenzene (TPB) single crystal for scintillation application

Cited by 22 publications

References 37 publications

Possible route to efficient thermoelectric applications in a driven fractal network

Possible route to efficient thermoelectric applications in a driven fractal network

A driven fractal network: Possible route to efficient thermoelectric application

Possible Routes to Obtain Enhanced Magnetoresistance in a Driven Quantum Heterostructure with a Quasi-Periodic Spacer

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