Coalescence dynamics of size-selected gold clusters studied by time-resolved transmission electron microscopy

J. Liu; D. Foster; Z. Y. Li; N Wilkinson; J. Yuan

doi:10.1088/1742-6596/902/1/012008

Coalescence dynamics of size-selected gold clusters studied by time-resolved transmission electron microscopy

J. Liu, D. Foster, Z. Y. Li, N Wilkinson, J. Yuan

Physics and Astronomy

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Abstract

Coalescence dynamics of size-selected gold (Au) clusters (each with nominal 923 atoms), on amorphous Si₃N₄ substrate at room temperature, has been studied via time-resolved transmission electron microscopy (TEM). We found that the clusters approached each other in two stages. In the first stage, the drift velocity was independent of the particle separation and could be attributed to beam-induced random motion. In the second stage, the clusters were found to jump into contact with a much higher final averaged speed. This is independent of beam dose rates and is attributed to the van der Waal attraction.

Original language	English
Article number	012008
Number of pages	4
Journal	Journal of Physics: Conf Series
Volume	902
DOIs	https://doi.org/10.1088/1742-6596/902/1/012008
Publication status	Published - 16 Oct 2017
Event	Electron Microscopy and Analysis Group Conference 2017 - Manchester, United Kingdom Duration: 3 Jul 2017 → 6 Jul 2017

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Liu_et_al_Coalescence_dynamics_of_size-selected_Journal_of_Physics_Conf_Series_2017
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title = "Coalescence dynamics of size-selected gold clusters studied by time-resolved transmission electron microscopy",

abstract = "Coalescence dynamics of size-selected gold (Au) clusters (each with nominal 923 atoms), on amorphous Si3N4 substrate at room temperature, has been studied via time-resolved transmission electron microscopy (TEM). We found that the clusters approached each other in two stages. In the first stage, the drift velocity was independent of the particle separation and could be attributed to beam-induced random motion. In the second stage, the clusters were found to jump into contact with a much higher final averaged speed. This is independent of beam dose rates and is attributed to the van der Waal attraction. ",

author = "J. Liu and D. Foster and Li, {Z. Y.} and N Wilkinson and J. Yuan",

year = "2017",

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doi = "10.1088/1742-6596/902/1/012008",

language = "English",

volume = "902",

journal = "Journal of Physics: Conf Series",

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note = "Electron Microscopy and Analysis Group Conference 2017, EMAG 2017 ; Conference date: 03-07-2017 Through 06-07-2017",

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TY - JOUR

T1 - Coalescence dynamics of size-selected gold clusters studied by time-resolved transmission electron microscopy

AU - Liu, J.

AU - Foster, D.

AU - Li, Z. Y.

AU - Wilkinson, N

AU - Yuan, J.

PY - 2017/10/16

Y1 - 2017/10/16

N2 - Coalescence dynamics of size-selected gold (Au) clusters (each with nominal 923 atoms), on amorphous Si3N4 substrate at room temperature, has been studied via time-resolved transmission electron microscopy (TEM). We found that the clusters approached each other in two stages. In the first stage, the drift velocity was independent of the particle separation and could be attributed to beam-induced random motion. In the second stage, the clusters were found to jump into contact with a much higher final averaged speed. This is independent of beam dose rates and is attributed to the van der Waal attraction.

AB - Coalescence dynamics of size-selected gold (Au) clusters (each with nominal 923 atoms), on amorphous Si3N4 substrate at room temperature, has been studied via time-resolved transmission electron microscopy (TEM). We found that the clusters approached each other in two stages. In the first stage, the drift velocity was independent of the particle separation and could be attributed to beam-induced random motion. In the second stage, the clusters were found to jump into contact with a much higher final averaged speed. This is independent of beam dose rates and is attributed to the van der Waal attraction.

U2 - 10.1088/1742-6596/902/1/012008

DO - 10.1088/1742-6596/902/1/012008

M3 - Conference article

SN - 1742-6596

VL - 902

JO - Journal of Physics: Conf Series

JF - Journal of Physics: Conf Series

M1 - 012008

T2 - Electron Microscopy and Analysis Group Conference 2017

Y2 - 3 July 2017 through 6 July 2017

ER -

Coalescence dynamics of size-selected gold clusters studied by time-resolved transmission electron microscopy

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