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Search for "screening length" in Full Text gives 18 result(s) in Beilstein Journal of Nanotechnology.

Application of nanoarchitectonics in moist-electric generation

  • Jia-Cheng Feng and
  • Hong Xia

Beilstein J. Nanotechnol. 2022, 13, 1185–1200, doi:10.3762/bjnano.13.99

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  • Debye screening length, about 9 nm for aqueous electrolytes [11][12][13][14]: where κ is the Debye screening length, εm is the permittivity of medium, kB is the Boltzmann constant, T is the temperature, and NA is the Avogadro number. In addition, the “two-step” model between liquid and solid proposed by
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Published 25 Oct 2022

Tunable superconducting neurons for networks based on radial basis functions

  • Andrey E. Schegolev,
  • Nikolay V. Klenov,
  • Sergey V. Bakurskiy,
  • Igor I. Soloviev,
  • Mikhail Yu. Kupriyanov,
  • Maxim V. Tereshonok and
  • Anatoli S. Sidorenko

Beilstein J. Nanotechnol. 2022, 13, 444–454, doi:10.3762/bjnano.13.37

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  • function, F, permits one to estimate the ability to influence the propagation of the superconducting correlations (screening properties) for the hybrid structure. The spatial distribution of the screening length λ(x) directly depends on the proximization of the superconducting order parameter in the system
  • [61][62]: where ρS is the resistivity of the superconducting material, μ0 is the vacuum permeability and ℏ is Planck’s constant. For instance, for a homogeneous niobium film, the estimate for the constant λ0 is around 100 nm, while experimentally measured values of the screening length λ at T = 4.2 K
  • are around 150 nm. The expression for the kinetic inductance of the structure is directly correlated with screening length [52][63], where X is the length of the strip, W is the width, and d is the thickness of the multilayer. In our calculations, we assume that the currents in the system are weak
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Published 18 May 2022

Controlling the proximity effect in a Co/Nb multilayer: the properties of electronic transport

  • Sergey Bakurskiy,
  • Mikhail Kupriyanov,
  • Nikolay V. Klenov,
  • Igor Soloviev,
  • Andrey Schegolev,
  • Roman Morari,
  • Yury Khaydukov and
  • Anatoli S. Sidorenko

Beilstein J. Nanotechnol. 2020, 11, 1336–1345, doi:10.3762/bjnano.11.118

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  • screening length directly depends on the proximity of the superconducting order parameter in the system [25], given by Hence, the screening length and the kinetic inductance of the considered s-layers are significantly higher in the P case compared to the AP case. This leads to a redistribution of the
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Published 07 Sep 2020

A biomimetic nanofluidic diode based on surface-modified polymeric carbon nitride nanotubes

  • Kai Xiao,
  • Baris Kumru,
  • Lu Chen,
  • Lei Jiang,
  • Bernhard V. K. J. Schmidt and
  • Markus Antonietti

Beilstein J. Nanotechnol. 2019, 10, 1316–1323, doi:10.3762/bjnano.10.130

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  • ]. In a charged nanochannel, only one ionic component can be transported across the nanochannel when the diameter of the nanochannel matches or falls below the Debye screening length because of the electrostatic interactions between the ions and the charged channel walls. As a result, positively charged
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Published 27 Jun 2019

A simple extension of the commonly used fitting equation for oscillatory structural forces in case of silica nanoparticle suspensions

  • Sebastian Schön and
  • Regine von Klitzing

Beilstein J. Nanotechnol. 2018, 9, 1095–1107, doi:10.3762/bjnano.9.101

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  • of Borkovec and Perkin [55][56][57][58]. Their results indicate that the extension term of the fit describes the electrostatic repulsion between the confining surfaces and links ξ2 to the electrostatic screening length. A comparison with the calculated Debye length, according to the supporting
  • formula for a damped oscillation with an additional exponentially decaying contribution as utilized by us (Equation 2). They linked the additional repulsive term with the double-layer forces and attributed the second decay length directly to the electrostatic screening length. The group of Borkovec [55
  • in an enhanced ordering of silica nanoparticles affected by the electrostatic repulsion from the confining walls. The range of this enhanced ordering would be determined by the electrostatic screening length, while the magnitude would be dependent on the concentration of particles in compliance to
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Published 05 Apr 2018

The nanofluidic confinement apparatus: studying confinement-dependent nanoparticle behavior and diffusion

  • Stefan Fringes,
  • Felix Holzner and
  • Armin W. Knoll

Beilstein J. Nanotechnol. 2018, 9, 301–310, doi:10.3762/bjnano.9.30

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  • geometrical dimensions approach the Debye screening length [17][18][19]. The mechanisms that have been proposed to explain the increased hindrance are anomalous viscosity [17], anomalous diffusion [19] and an electroviscous effect [18]. Here we present a versatile setup that allows the distance between two
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Published 26 Jan 2018

Fingerprints of a size-dependent crossover in the dimensionality of electronic conduction in Au-seeded Ge nanowires

  • Maria Koleśnik-Gray,
  • Gillian Collins,
  • Justin D. Holmes and
  • Vojislav Krstić

Beilstein J. Nanotechnol. 2016, 7, 1574–1578, doi:10.3762/bjnano.7.151

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  • have quasi one-dimensional character as reflected by the extracted screening lengths. Keywords: electrical transport; germanium nanowires; quasi-1D confinement; screening length; VLS growth; Results and Discussion Synthetic germanium nanowires (Ge NWs) have been proposed as potential next-generation
  • electronic response to changes at the NW surface region, both the electrostatic screening length should be larger than the NW radius and the surface-to-volume ratio maximised [8]. This in turn will only be fulfilled for a certain range of screening lengths [7] and associated NW surface-to-volume ratios [8
  • ]. While the surface-to-volume ratio scales with NW radius and therefore can be controlled by adjusting synthesis conditions [11][12], the screening length depends on the density and dimensional character of the charge carriers in the NW [8]. Therefore it is crucial to investigate the charge transport
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Published 02 Nov 2016

Current–voltage characteristics of manganite–titanite perovskite junctions

  • Benedikt Ifland,
  • Patrick Peretzki,
  • Birte Kressdorf,
  • Philipp Saring,
  • Andreas Kelling,
  • Michael Seibt and
  • Christian Jooss

Beilstein J. Nanotechnol. 2015, 6, 1467–1484, doi:10.3762/bjnano.6.152

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  • PCMO near the interface due to local variations of the correlation interactions and the small screening length and assume that the main voltage drop happens in the STNO. If the diode is biased in the forward direction, the barrier for the recombination current is decreased, whereas it is increased for
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Published 07 Jul 2015

Kelvin probe force microscopy in liquid using electrochemical force microscopy

  • Liam Collins,
  • Stephen Jesse,
  • Jason I. Kilpatrick,
  • Alexander Tselev,
  • M. Baris Okatan,
  • Sergei V. Kalinin and
  • Brian J. Rodriguez

Beilstein J. Nanotechnol. 2015, 6, 201–214, doi:10.3762/bjnano.6.19

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  • be expressed as where D is the diffusivity of the ions in solution, L is the separation of the electrodes and λ is the Debye screening length, given by where k is Boltzmann’s constant, Cb is the molar concentration, ε is the dielectric permittivity of the solvent, T is the temperature, e is the
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Published 19 Jan 2015

Advances in NO2 sensing with individual single-walled carbon nanotube transistors

  • Kiran Chikkadi,
  • Matthias Muoth,
  • Cosmin Roman,
  • Miroslav Haluska and
  • Christofer Hierold

Beilstein J. Nanotechnol. 2014, 5, 2179–2191, doi:10.3762/bjnano.5.227

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  • that this may be related to the screening length in their short-channel FETs. Similar observations are made by Mattmann et al. [9]. On the other hand, Zhang et al. [22] discuss the response of polymer-passivated long-channel FETs which also show an apparent shift of the characteristics. They suggest
  • barrier changes the screening length, the result on the transfer characteristics could be similar to that produced by a change in the metal work function (the Schottky barrier width changes instead of the height). Adsorption in the bulk of the nanotube causing a doping effect could produce no measurable
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Published 20 Nov 2014

Effect of channel length on the electrical response of carbon nanotube field-effect transistors to deoxyribonucleic acid hybridization

  • Hari Krishna Salila Vijayalal Mohan,
  • Jianing An,
  • Yani Zhang,
  • Chee How Wong and
  • Lianxi Zheng

Beilstein J. Nanotechnol. 2014, 5, 2081–2091, doi:10.3762/bjnano.5.217

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  • comparable to the size of single biomolecules, and to the electrostatic screening length in physiological solutions, which offers high sensitivity because of their large specific area; ii) their tubular structure allows fabrication of ultrasensitive, single nanotube-based devices; and iii) their excellent
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Published 12 Nov 2014

The surface properties of nanoparticles determine the agglomeration state and the size of the particles under physiological conditions

  • Christoph Bantz,
  • Olga Koshkina,
  • Thomas Lang,
  • Hans-Joachim Galla,
  • C. James Kirkpatrick,
  • Roland H. Stauber and
  • Michael Maskos

Beilstein J. Nanotechnol. 2014, 5, 1774–1786, doi:10.3762/bjnano.5.188

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  • determination in AF-FFF is not absolute [39]. The mentioned interactions are strongly affected by the concentration and the type of the electrolyte that is added to the eluate. When increasing the salinity of the dispersant, electrostatic repulsions of colloids are reduced by decreasing the Debye screening
  • length, κ−1, as described by the DLVO theory [40]. Additionally, specific ion phenomena arise from different polarizabilities and Pearson acidities of the ions, leading to a variation of ion–solvent interactions [39]. Specific ion properties are summarized in the Hofmeister or lyotropic series [41][42
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Published 15 Oct 2014

Current state of laser synthesis of metal and alloy nanoparticles as ligand-free reference materials for nano-toxicological assays

  • Christoph Rehbock,
  • Jurij Jakobi,
  • Lisa Gamrad,
  • Selina van der Meer,
  • Daniela Tiedemann,
  • Ulrike Taylor,
  • Wilfried Kues,
  • Detlef Rath and
  • Stephan Barcikowski

Beilstein J. Nanotechnol. 2014, 5, 1523–1541, doi:10.3762/bjnano.5.165

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  • stability threshold. Additionally, the electrolyte concentration has a pronounced impact on nanoparticle stability as ions are known to screen surface charges in the electrical double layer, increasing the Debye parameter (κ). κ is reciprocal to the Debye screening length which describes the range of
  • ~ (1/T)1/2) [108] and the Debeye screening length (κ−1) increases with temperature, a correlation which needs to be considered when temperature and ion effects are meant to be simultaneously evaluated in great detail. Another indirect influence on colloidal stability is given by the particle
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Published 12 Sep 2014

Analytical development and optimization of a graphene–solution interface capacitance model

  • Hediyeh Karimi,
  • Rasoul Rahmani,
  • Reza Mashayekhi,
  • Leyla Ranjbari,
  • Amir H. Shirdel,
  • Niloofar Haghighian,
  • Parisa Movahedi,
  • Moein Hadiyan and
  • Razali Ismail

Beilstein J. Nanotechnol. 2014, 5, 603–609, doi:10.3762/bjnano.5.71

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  • only small values of VG. These explanations of the current study are consistent with those of Jilin Xia [26] in 2009, who found that the Debye ionic screening length of the ionic liquid is virtually zero, which makes the quantum capacitance a dominant source of the measured capacitance. They performed
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Published 09 May 2014

Effect of contaminations and surface preparation on the work function of single layer MoS2

  • Oliver Ochedowski,
  • Kolyo Marinov,
  • Nils Scheuschner,
  • Artur Poloczek,
  • Benedict Kleine Bussmann,
  • Janina Maultzsch and
  • Marika Schleberger

Beilstein J. Nanotechnol. 2014, 5, 291–297, doi:10.3762/bjnano.5.32

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  • situ screening length of MoS2 In the next step, we determine the work function of BLM and the screening length of MoS2. For this the SLM/BLM/FLM section of Figure 3 has been measured again in more detail and the work function is analyzed by line profiles. Shown in Figure 4a–c are the NC-AFM topography
  • function map in Figure 4b, three contrasts can be observed – SLM, BLM and FLM. As the work function for FLM 2.96 nm and the other FLM with 7.89 nm is not changing, we conclude from our data that the screening length of MoS2 is at least 2.96 nm, which is in good agreement with previous findings for annealed
  • MoS2 [29]. Li et al. compared the screening length of pristine MoS2 flakes on SiO2 with annealed MoS2 flakes and found a decrease from approximately 5 nm down to 2.5 nm for annealed MoS2. Our measurements here yield a screening length between 1.6 and 2.96 nm, which is much lower than the value for
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Published 13 Mar 2014

A highly pH-sensitive nanowire field-effect transistor based on silicon on insulator

  • Denis E. Presnov,
  • Sergey V. Amitonov,
  • Pavel A. Krutitskii,
  • Valentina V. Kolybasova,
  • Igor A. Devyatov,
  • Vladimir A. Krupenin and
  • Igor I. Soloviev

Beilstein J. Nanotechnol. 2013, 4, 330–335, doi:10.3762/bjnano.4.38

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  • mode, the concentration of charge carriers in the NW decreases by orders of magnitude and the screening length in the NW, λ1, increases accordingly. Simultaneously, the dependence of the potential on the coordinate in Equation 5 disappears (I0(x) ≈ 1, x → 0), the NW capacitance decreases and only the
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Published 28 May 2013

Macromolecular shape and interactions in layer-by-layer assemblies within cylindrical nanopores

  • Thomas D. Lazzara,
  • K. H. Aaron Lau,
  • Wolfgang Knoll,
  • Andreas Janshoff and
  • Claudia Steinem

Beilstein J. Nanotechnol. 2012, 3, 475–484, doi:10.3762/bjnano.3.54

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  • significantly reduce the Debye screening length and achieve optimal pore loading. The flow cell was rinsed with ethanol, followed by the buffer. The kinetics were monitored by following the change in a high-order waveguide TM-mode. The solution was passed through the flow cell (15 × 7.5 × 0.5 mm3) until 1.4
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Published 28 Jun 2012

Simple theoretical analysis of the photoemission from quantum confined effective mass superlattices of optoelectronic materials

  • Debashis De,
  • Sitangshu Bhattacharya,
  • S. M. Adhikari,
  • A. Kumar,
  • P. K. Bose and
  • K. P. Ghatak

Beilstein J. Nanotechnol. 2011, 2, 339–362, doi:10.3762/bjnano.2.40

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  • electronics in general The investigations as presented in this paper find six different applications in the realm of modern quantum effect devices and they are briefly written as follow: 5.1 Debye screening length The Debye screening length (DSL) of the carriers in the semiconductors is a fundamental quantity
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Published 06 Jul 2011
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