Articles with "quantum capacitance" as a keyword



Accounting for the Quantum Capacitance of Graphite in Constant Potential Molecular Dynamics Simulations

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Published in 2024 at "Advanced Materials"

DOI: 10.1002/adma.202405230

Abstract: Molecular dynamics (MD) simulations at a constant electric potential are an essential tool to study electrochemical processes, providing microscopic information on the structural, thermodynamic, and dynamical properties. Despite the numerous advances in the simulation of… read more here.

Keywords: dynamics simulations; capacitance graphite; quantum capacitance; molecular dynamics ... See more keywords

Gas adsorption effect on the graphene nanoribbon band structure and quantum capacitance

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Published in 2017 at "Adsorption"

DOI: 10.1007/s10450-017-9895-0

Abstract: Graphene nanoribbons (GNRs) as a quasi-one dimensional (1D) narrow strip of graphene hold great potential for applications in variety of sensors because of π-bonds that can react with chemical elements. Despite outstanding properties, graphene nanoribbons… read more here.

Keywords: adsorption; graphene; gas; quantum capacitance ... See more keywords

A general analytical method for finding the quantum capacitance of graphene

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Published in 2018 at "Journal of Computational Electronics"

DOI: 10.1007/s10825-018-1202-0

Abstract: The quantum capacitance of graphene has been modeled in numerous articles using approximate analytical expressions and numerical methods. However, no article shows how to analytically find the quantum capacitance of graphene for the full temperature… read more here.

Keywords: capacitance graphene; method finding; capacitance; quantum capacitance ... See more keywords

Strain effects on the quantum capacitance of graphene nanoribbon devices

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Published in 2020 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2019.144292

Abstract: Abstract One of the most important characteristics of graphene-based nanodevices is the quantum capacitance (QC) of the channel which plays a dominant role in governing the device performance. Moreover, QC can be utilized to realize… read more here.

Keywords: capacitance; effects quantum; strain effects; quantum capacitance ... See more keywords

First-principle study of electronic properties and quantum capacitance of lithium adsorption on pristine and vacancy-defected O-functionalized Ti2C MXene

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Published in 2021 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2021.150264

Abstract: Abstract The electronic structure, surface charge storage and quantum capacitance of lithium adsorption on pristine and vacancy-defected Ti2CO2 MXene are theoretically investigated by density functional theory. Negative adsorption energies (Eads) of pristine Ti2CO2 (PT) and… read more here.

Keywords: lithium adsorption; quantum capacitance; adsorption; capacitance lithium ... See more keywords

Quantum Capacitance Based Amplified Graphene Phononics for Studying Neurodegenerative Diseases.

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Published in 2019 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.8b15893

Abstract: Amyotrophic lateral sclerosis (ALS) is the most common adult-onset motor neuron disease (MND) characterized by a rapid loss of upper and lower motor neurons resulting in patient death from respiratory failure within 3-5 years of… read more here.

Keywords: graphene; disease; neurodegenerative diseases; quantum capacitance ... See more keywords

Interplay of negative electronic compressibility and capacitance enhancement in lightly-doped metal oxide Bi0.95La0.05FeO3 by quantum capacitance model

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Published in 2020 at "Scientific Reports"

DOI: 10.1038/s41598-020-61859-6

Abstract: Light-sensitive capacitance variation of Bi0.95La0.05FeO3 (BLFO) ceramics has been studied under violet to UV irradiation. The reversible capacitance enhancement up to 21% under 405 nm violet laser irradiation has been observed, suggesting a possible degree… read more here.

Keywords: 95la0 05feo3; capacitance enhancement; quantum capacitance; negative electronic ... See more keywords
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Quantum capacitance as a reagentless molecular sensing element.

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Published in 2017 at "Nanoscale"

DOI: 10.1039/c7nr06160a

Abstract: The application of nanoscale capacitance as a transduction of molecular recognition relevant to molecular diagnostics is demonstrated. The energy-related signal relates directly to the electron occupation of quantized states present in readily fabricated molecular junctions… read more here.

Keywords: capacitance reagentless; reagentless molecular; quantum capacitance; molecular sensing ... See more keywords
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Quantum capacitance of a three-dimensional topological insulator based on HgTe

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Published in 2017 at "Low Temperature Physics"

DOI: 10.1063/1.4983330

Abstract: The quantum capacitance that directly characterizes the density of states of highly mobile Dirac two-dimensional states formed on the surface of a stressed HgTe film is studied experimentally. It is shown that, as opposed to… read more here.

Keywords: three dimensional; quantum capacitance; capacitance three; dimensional topological ... See more keywords

Acetone sensitivity and quantum capacitance of novel modified TiO2 nanosheet: A DFT investigation

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Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ada190

Abstract: Despite being relatively new to 2D nanoworld, TiO2 nanosheets (TiO2NS) are rapidly gaining prominence as highly effective materials for chemical sensor, photocatalysis and electrochemical energy storage. In this study, the potential of density functional theory… read more here.

Keywords: tio2ns; quantum capacitance; acetone; tio2 nanosheets ... See more keywords

Theory of multidimensional quantum capacitance and its application to spin and charge discrimination in quantum dot arrays

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Published in 2022 at "Physical Review B"

DOI: 10.1103/physrevb.107.155411

Abstract: Quantum states of a few-particle system capacitively coupled to a metal gate can be discriminated by measuring the quantum capacitance, which can be identified with the second derivative of the system energy with respect to… read more here.

Keywords: quantum capacitance; quantum dot; quantum; voltage ... See more keywords