Mechanical properties of gold nanowires prepared by nanoskiving approach

Fang, Zhuo; Geng, Yanquan; Wang, Jiqiang; Yan, Yongda; Zhang, Guoxiong

doi:10.1039/d0nr01049a

Cited by 14 publications

(8 citation statements)

References 39 publications

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“…In contrast to previous studies, we could not confirm a general trend of softening [7,27] or stiffening [6] with decreasing size and neither a constant bulk-like value [28,29]. Instead, we find two different regimes for the Young's modulus with decreasing size: a softening followed by a stiffening regime.…”

Section: Discussioncontrasting

confidence: 99%

Effect of size and shape on the elastic modulus of metal nanowires

et al. 2021

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Size effects decisively influence the properties of materials at small length scales. In the context of mechanical properties, the trend of ‘smaller is stronger’ has been well established. This statement refers to an almost universal trend of increased strength with decreasing size. A strong influence of size on the elastic properties has also been widely reported, albeit without a clear trend. However, the influence of nanostructure shape on the mechanical properties has been critically neglected. Here, we demonstrate a profound influence of shape and size on the elastic properties of materials on the example of gold nanowires. The elastic properties are determined using in-situ mechanical testing in scanning and transmission electron microscopy by means of resonance excitation and uniaxial tension. The combination of bending and tensile load types allows for an independent and correlative calculation of the Young's modulus. We find both cases of softening as well as stiffening, depending critically on the interplay between size and shape of the wires. Graphic abstract

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Section: Discussioncontrasting

confidence: 99%

Effect of size and shape on the elastic modulus of metal nanowires

et al. 2021

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“…The yield strengths of the nanowires obtained by parallel sectioning were much higher than the corresponding strengths of nanowires obtained by perpendicular sectioning. [ 50 ] This difference is due to the finer and denser twins produced by the larger strains in the former case when compared with the latter case. The existence of these twins hinders the generation and transmission of dislocations inside the nanowires under an applied load, and the macroscopic performance is manifested as the improvement in the yield strength.…”

Section: Improvements In Fabrication Methodsmentioning

confidence: 99%

“…For optical modulation applications, various spectroscopic tech niques, including surfaceenhanced Raman scattering (SERS), surfaceenhanced infrared absorption (SERIA), and surface enhanced photoluminescence (PL), are used in chemical analysis, [55] bioimaging, [56] optical filtering, [57] and structural Reproduced with permission. [50] Copyright 2020, Royal Society of Chemisty. coloration applications.…”

Section: Optical Modulationmentioning

confidence: 99%

“…[13] The second pro cess (Figure 3b) yields 2D arrays of nanostructures. Patterning the film and combined with different sectioning directions Adaptation for semiconductor materials [32,34] Adaptation for polymeric materials [42] Embedding medium Thiol-containing polymeric embedding materials [48] Sectioning parameters Cutting direction [49,50] Cutting depth [34,52] Manipulation of slices Aligning-bonding approach [34] "Perfect transfer" approach [54] Applications development of nanoskiving Optical modulation Nanogaps for SERS [74,76,77,82,83] Photoluminescence [32,89] Electrochemical analysis Preparation of electrochemical nanoelectrodes [97][98][99][100] Electronic switches and sensors Light gating of molecular tunneling junctions [103] Mechanical strain sensors [107] Control of biomolecules and cells The detection of DNA-protein interactions [112] The control of cell organization [119] can prepare nanostructures with accurately defined length and spacing. [1] For example, perpendicular sectioning to the pat terned surface causes the production of rectangular wavy nano structure and parallel sectioning to the patterned surface causes the production of nanowire array.…”

Section: Introduction Of Ultramicrotome and Nanoskivingmentioning

confidence: 99%

mentioning

confidence: 99%

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Recent Progress in the Nanoskiving Approach: A Review of Methodology, Devices, and Applications

Fang

Yan

Geng

2021

Adv Materials Technologies

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Nanoskiving is a unique nanomanufacturing method that can be used to cut out nanostructures directly with well‐controlled shapes and sizes. Over the past 10 years, nanoskiving techniques have evolved in terms of optimization of the sectioning parameters and development of the transfer and alignment approaches. In addition, the range of compatible materials for nanoskiving is expanding via combination of the technique with other bottom–up and top–down methods; for example, soft materials such as block polymers and hard materials such as cemented carbide and semiconductor materials are now able to be nanosized successfully, despite previously being considered incompatible with nanoskiving technology. The preparation of these structures by the nanoskiving method opens a convenient door to verification of the application of this technique to device miniaturization in fields including optics, electrochemistry, electronics, and biology. This review outlines the advances made in nanoskiving, including those in the fabrication process, the development of suitable applications, and the challenges and opportunities for future exploration of the technology.

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