Theoretical study of the surface energy, stress, and lattice contraction of silver nanoparticles

Medasani, Bharat; Park, Young Ho; Vasiliev, Igor

doi:10.1103/physrevb.75.235436

Cited by 158 publications

(145 citation statements)

References 34 publications

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“…[43][44][45] All the theoretical predictions agree well with the experimental and numerical results. [3][4][5]7,[46][47][48][49] In the present paper, the resonant vibration of both fixed-fixed nanowires and cantilevered ones is investigated with the new developed elastic theory for nanomaterials and theoretical predictions are further compared with the existing numerical results. Geometrical factors governing the size dependent characteristics of resonant frequency are also discussed, which could provide a theoretical guidance for the design of nanowire resonators and sensors in NEMs.…”

Section: Introductionmentioning

confidence: 99%

Surface effect on resonant properties of nanowires predicted by an elastic theory for nanomaterials

Yao

Chen

2015

Journal of Applied Physics

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Articles you may be interested inA recently developed continuum theory considering surface effect in nanomaterials is adopted to investigate the resonant properties of nanowires with different boundary conditions in the present paper. The main feature of the adopted theory is that the surface effect in nanomaterials is characterized by the surface energy density of the corresponding bulk materials and the surface relaxation parameter in nanoscale. Based on a fixed-fixed beam model and a cantilever one, the governing equation of resonant frequency for corresponding nanowires is obtained. Numerical calculation of the fundamental resonant frequency is carried out, the result of which is well consistent with the existing numerical ones. Comparing to the result predicted by the conventionally structural dynamics, the resonant frequency of a fixed-fixed nanowire is improved, while that of a cantilever nanowire is weakened due to the surface effect. Both a decreasing characteristic size (height or diameter) and an increasing aspect ratio could further enhance the varying trend of resonant properties for both kinds of nanowires. The present result should be helpful for the design of nano-devices and nanostructures related to nanowires. V C 2015 AIP Publishing LLC.

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Section: Introductionmentioning

confidence: 99%

Surface effect on resonant properties of nanowires predicted by an elastic theory for nanomaterials

Yao

Chen

2015

Journal of Applied Physics

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“…Expansion of the lattice parameter is generally observed in oxides such as CeO 2 [4][5][6], Fe 2 O 3 [7], MgO [8], TiO 2 (rutile) [9], ZrO 2 [10], BaTiO 3 [11], cubic PbTiO 3 [12], and BiFeO 3 [13]. In contrast, contraction in the lattice parameter, is observed in most metals, such as Au [14][15][16], Ag [17][18][19][20], Sn [21], Bi [21,22], Pt [15,23], Si [24], Cu [25], Ni [25], Pd [26,27], ZnS and CdSe [28,29]. Shrinkage of the Cu-Cu distance up to 9% for very small sizes has been reported by Apai,et al in [25].…”

Section: Introductionmentioning

confidence: 86%

Thickness Effect on Fluctuation of Electron States in Thin Film and Implications for Lattice Constant Change Due to Size Reduction

Amalia

Viridi

Abdullah

2017

J. Math. Fund. Sci.

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Abstract. We propose a model for predicting the fluctuation of electron states in thin films as a function of film thickness. The model is derived based on the assumption of the existence of potential barrier fluctuation on the film surface. Since the wave functions of electrons in the film are determined by the boundary conditions of the potential on the film surface, the potential fluctuation on the film surface implies fluctuation of the electron states in the film. The model was extended to predict the effect of size on the lattice constant of thin films or nanoparticles.

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“…It is well known that the physics of micrometric or sub-millimetric drops is correctly governed by surface tension solely [48]. The angle of contact, θ, at the solid/air/liquid interface indicates the propensity of a droplet of whether wetting or not a surface.…”

Section: Rational Design Of Shssmentioning

confidence: 99%

The Five Ws (and one H) of Super-Hydrophobic Surfaces in Medicine

et al. 2014

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Super-hydrophobic surfaces (SHSs) are bio-inspired, artificial microfabricated interfaces, in which a pattern of cylindrical micropillars is modified to incorporate details at the nanoscale. For those systems, the integration of different scales translates into superior properties, including the ability of manipulating biological solutions. The five Ws, five Ws and one H or the six Ws (6W), are questions, whose answers are considered basic in information-gathering. They constitute a formula for getting the complete story on a subject. According to the principle of the six Ws, a report can only be considered complete if it answers these questions starting with an interrogative word: who, why, what, where, when, how. Each question should have a factual answer. In what follows, SHSs and some of the most promising applications thereof are reviewed following the scheme of the 6W. We will show how these surfaces can be integrated into bio-photonic devices for the identification and detection of a single molecule. We will describe how SHSs and nanoporous silicon matrices can be combined to yield devices with the capability of harvesting small molecules, where the cut-off size can be adequately controlled. We will describe how this concept is utilized for obtaining a direct TEM image of a DNA molecule. OPEN ACCESSMicromachines 2014, 5 240

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Theoretical study of the surface energy, stress, and lattice contraction of silver nanoparticles

Cited by 158 publications

References 34 publications

Surface effect on resonant properties of nanowires predicted by an elastic theory for nanomaterials

Surface effect on resonant properties of nanowires predicted by an elastic theory for nanomaterials

Thickness Effect on Fluctuation of Electron States in Thin Film and Implications for Lattice Constant Change Due to Size Reduction

The Five Ws (and one H) of Super-Hydrophobic Surfaces in Medicine

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