E-beam-induced in situ structural transformation in one-dimensional nanomaterials

Dai, Sheng; He, Mo‐Rigen; Zhu, Jing

doi:10.1007/s11434-014-0571-4

Cited by 8 publications

(8 citation statements)

References 35 publications

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“…In Eq. ( 4) or (5), ρ is the volume density of atoms which is taken as a constant value here, and K is the thermodynamic reaction constant which is defined as K = K0 exp(-ΔG * /RT), where K0 is a constant, R is the gas constant, T is the temperature, and ΔG * is the activation energy for the structure changes [17].…”

Section: Resultsmentioning

confidence: 99%

“…Electron beam (e-beam) irradiation-induced structure changes and processing in nanowires (NWs) have been studied extensively [1][2][3][4][5][6][7][8][9][10] due to their intensive research interest and numerous promising applications in nanotechnology and nanodevices. Among these, study on the elongation of NWs [7][8][9][10] in an in-situ transmission electron microscope (TEM) is especially popular and interested.…”

Section: Introductionmentioning

confidence: 99%

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Intriguing uniform elongation and accelerated radial shrinkage in an amorphous SiO_xnanowire as purely induced by uniform electron beam irradiation

Zhu

2017

RSC Adv.

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At room temperature, an intriguing athermal uniform elongation and accelerated radial shrinkage in a straight and uniform amorphous SiO x nanowire (a-SiO x NW) as purely induced by uniform electron beam (e-beam) irradiation (without any external tensile pulling) was in situ observed and investigated in transmission electron microscope. According to a new model for NW taking into account the NW nanocurvature over its surface as well as the beam-induced athermal activation, a kinetic relationship between the shrinking radius and the irradiation time was established. The fitting results demonstrated that a curvature-dependent surface energy at the nanoscale (so-called nanocurvature effect) much higher than that predicted from the existing theories was exerted on the elongation and shrinkage of the NW. At the same time, the so-induced plastic flow of massive atoms and surface diffusion of atoms presented as well a further direct experimental evidence for our predicted soft mode and instability of atomic vibration as induced under energetic beam irradiation in amorphous materials. The study has important implications for the nanoprocessing or nanostability of future NW-based structures or devices.More importantly, it further demonstrates that the nanocurvature effect and the beam-induced atomic vibration soft mode and instability effect, which have been normally neglected or inadequately taken into account in the current literature, are universal concepts and applicable to explanation of energetic beam-induced nanoinstability or nanoprocessing of low dimensional nanostructure in general.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intriguing uniform elongation and accelerated radial shrinkage in an amorphous SiO_xnanowire as purely induced by uniform electron beam irradiation

Zhu

2017

RSC Adv.

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“…The electron beam of the TEM should be turned off during I-V measurements because it may have a significant impact on the electrical properties. 123,124 The electron beam effects on the nanostructures may be either positive or negative and thus should be accurately used to meet the specific experimental requirements. In fact, some reports have paid attention to this issue and explored the electrical properties of individual nanostructures under electron beam irradiation.…”

Section: Multi-field Couplingmentioning

confidence: 99%

In situ fabrication and investigation of nanostructures and nanodevices with a microscope

Zhang

Gan

et al. 2016

Chem. Soc. Rev.

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The widespread availability of nanostructures and nanodevices has placed strict requirements on their comprehensive characterization. Herein, in situ techniques are demonstrated to have created a rare opportunity to accurately analyze the intrinsic properties of individual nanostructures and to accomplish the smart design of nanodevices made from these nanostructures. This paper reviews recent developments in in situ fabrication and characterization technologies established within various types of microscopes and the rich information they may provide. The in situ techniques are shown to be important for exploration of many intriguing phenomena at the nanoscale which may then be followed by the smart integration of nanostructures into real functional devices. Successful in situ detection results are presented and discussed, especially in the areas of energy generation, biological imaging and water pumping. Finally, we conclude this article with an examination of the existing challenges and the outlook for this quickly emerging field.

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“…In recent years, low dimensional nanostructures (LDNs) have attracted considerable attention due to their numerous potential applications in nanodevices and nanotechnology. 1–4 Nevertheless, due to uncontrollability in their growth and fabrication, the as-grown or as-fabricated LDNs normally do not possess desired shapes, structures or properties. Therefore, a followed-up nanoprocessing, for instance, nanowelding of LDNs, 5 becomes crucial to their applications.…”

Section: Introductionmentioning

confidence: 99%

Electron beam-induced athermal nanowelding of crossing SiO_x amorphous nanowires

Zheng

Cheng

et al. 2022

RSC Adv.

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E-beam-induced in situ structural transformation in one-dimensional nanomaterials

Cited by 8 publications

References 35 publications

Intriguing uniform elongation and accelerated radial shrinkage in an amorphous SiO_xnanowire as purely induced by uniform electron beam irradiation

Intriguing uniform elongation and accelerated radial shrinkage in an amorphous SiO_xnanowire as purely induced by uniform electron beam irradiation

In situ fabrication and investigation of nanostructures and nanodevices with a microscope

Electron beam-induced athermal nanowelding of crossing SiO_x amorphous nanowires

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E-beam-induced in situ structural transformation in one-dimensional nanomaterials

Cited by 8 publications

References 35 publications

Intriguing uniform elongation and accelerated radial shrinkage in an amorphous SiOxnanowire as purely induced by uniform electron beam irradiation

Intriguing uniform elongation and accelerated radial shrinkage in an amorphous SiOxnanowire as purely induced by uniform electron beam irradiation

In situ fabrication and investigation of nanostructures and nanodevices with a microscope

Electron beam-induced athermal nanowelding of crossing SiOx amorphous nanowires

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Product

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About

Intriguing uniform elongation and accelerated radial shrinkage in an amorphous SiO_xnanowire as purely induced by uniform electron beam irradiation

Intriguing uniform elongation and accelerated radial shrinkage in an amorphous SiO_xnanowire as purely induced by uniform electron beam irradiation

Electron beam-induced athermal nanowelding of crossing SiO_x amorphous nanowires