A procedure for calculating the many-particle Bohm quantum potential

Site, Luigi Delle

doi:10.1016/j.physb.2004.03.091

Cited by 8 publications

(1 citation statement)

References 30 publications

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“…The length of SiNWs was fixed at 1 m. The other principal parameters are shown in Table I calculated using the light intensity distribution at each mesh point obtained by the finite difference time domain (FDTD) method. To introduce the quantum effect into the electrical transport in SiNW solar cells, the Bohm quantum potential (BQP) method [16][17][18][19] was adopted, which has been used for the quantum device simulation of fin field-effect transistors (FinFETs) 20,21) and silicon quantum dots solar cells 22) among others. In the BQP method, the transport of carriers is influenced by the total of the potential characterizing the system (V ) and quantum potential (ÀQ).…”

Section: Methodsmentioning

confidence: 99%

Numerical Approach to the Investigation of Performance of Silicon Nanowire Solar Cells Embedded in a SiO₂ Matrix

Kurokawa

Kato

Watanabe

et al. 2012

Jpn. J. Appl. Phys.

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The electrical characteristics of silicon nanowire (SiNW) solar cells with p-type hydrogenated amorphous silicon oxide (E g ¼ 1:9 eV)/n-type SiNWs embedded in a SiO 2 /n-type hydrogenated amorphous silicon oxide (E g ¼ 1:9 eV) structure have been investigated using two-and threedimensional device simulators, taking into account the quantum size effect. The average bandgap of a SiNW embedded in SiO 2 increased from 1.15 to 2.68 eV with decreasing diameter from 10 to 2 nm, owing to the quantum size effect. Note that under sunlight of AM1.5G, the open-circuit voltage (V oc ) of SiNW solar cells also increased to 1.46 V with decreasing diameter of the SiNWs to 2 nm. This result suggests that it is possible to enhance V oc by applying the quantum size effect, and a SiNW is a promising material for all-silicon tandem solar cells.

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Section: Methodsmentioning

confidence: 99%

Numerical Approach to the Investigation of Performance of Silicon Nanowire Solar Cells Embedded in a SiO₂ Matrix

Kurokawa

Kato

Watanabe

et al. 2012

Jpn. J. Appl. Phys.

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Investigation on the conversion efficiency of InGaN solar cells fabricated on GaN and ZnO substrates

Inoue

Katoh

Kobayashi

et al. 2010

Physica Rapid Research Ltrs

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By the use of a device simulator that takes the quantum effect into account, we have investigated the characteristics of InGaN solar cells stacked coherently on GaN or ZnO substrates. We have found that it is necessary to fabricate non‐polar cells, N‐polar cells with p–i–n structures, or III‐polar cells with n–i–p structures in order to achieve high conversion efficiency. InGaN solar cells grown on GaN substrates and on ZnO substrates exhibit almost the same conver‐ sion efficiencies, in spite of the difference in the intensities of the strains in the InGaN films. Taking the smaller lattice mismatch between InGaN and ZnO into account, we conclude that the use of ZnO substrates, which makes the growth of thick InGaN films with high In concentrations simpler to achieve, is advantageous in the fabrication of high conversion efficiency InGaN solar cells. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Applied Bohmian mechanics

et al. 2014

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Abstract. Bohmian mechanics provides an explanation of quantum phenomena in terms of point-like particles guided by wave functions. This review focuses on the use of nonrelativistic Bohmian mechanics to address practical problems, rather than on its interpretation. Although the Bohmian and standard quantum theories have different formalisms, both give exactly the same predictions for all phenomena. Fifteen years ago, the quantum chemistry community began to study the practical usefulness of Bohmian mechanics. Since then, the scientific community has mainly applied it to study the (unitary) evolution of single-particle wave functions, either by developing efficient quantum trajectory algorithms or by providing a trajectorybased explanation of complicated quantum phenomena. Here we present a large list of examples showing how the Bohmian formalism provides a useful solution in different forefront research fields for this kind of problems (where the Bohmian and the quantum hydrodynamic formalisms coincide). In addition, this work also emphasizes that the Bohmian formalism can be a useful tool in other types of (nonunitary and nonlinear) quantum problems where the influence of the environment or the nonsimulated degrees of freedom are relevant. This review contains also examples on the use of the Bohmian formalism for the many-body problem, decoherence and measurement processes. The ability of the Bohmian formalism to analyze this last type of problems for (open) quantum systems remains mainly unexplored by the scientific community. The authors of this review are convinced that the final status of the Bohmian theory among the scientific community will be greatly influenced by its potential success in those types of problems that present nonunitary and/or nonlinear quantum evolutions. A brief introduction of the Bohmian formalism and some of its extensions are presented in the last part of this review.

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A procedure for calculating the many-particle Bohm quantum potential

Cited by 8 publications

References 30 publications

Numerical Approach to the Investigation of Performance of Silicon Nanowire Solar Cells Embedded in a SiO₂ Matrix

Numerical Approach to the Investigation of Performance of Silicon Nanowire Solar Cells Embedded in a SiO₂ Matrix

Investigation on the conversion efficiency of InGaN solar cells fabricated on GaN and ZnO substrates

Applied Bohmian mechanics

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A procedure for calculating the many-particle Bohm quantum potential

Cited by 8 publications

References 30 publications

Numerical Approach to the Investigation of Performance of Silicon Nanowire Solar Cells Embedded in a SiO2 Matrix

Numerical Approach to the Investigation of Performance of Silicon Nanowire Solar Cells Embedded in a SiO2 Matrix

Investigation on the conversion efficiency of InGaN solar cells fabricated on GaN and ZnO substrates

Applied Bohmian mechanics

Contact Info

Product

Resources

About

Numerical Approach to the Investigation of Performance of Silicon Nanowire Solar Cells Embedded in a SiO₂ Matrix

Numerical Approach to the Investigation of Performance of Silicon Nanowire Solar Cells Embedded in a SiO₂ Matrix