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

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

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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
Title of host publication	Journal of Physics: Conference Series
Publisher	IOP Publishing
Volume	902
DOIs	https://doi.org/10.1088/1742-6596/902/1/012008
Publication status	Published - 30 Oct 2017

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10.1088/1742-6596/902/1/012008Licence: CC BY

Liu2017_JPhysConfSer_902_012008Final published version, 1.74 MBLicence: CC BY

1 Conference participation

MMC2017/EMAG2017
Yuan, J. (Organiser)
3 Jul 2017 → 6 Jul 2017
Activity: Participating in or organising an event › Conference participation

Cite this

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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 Jun Yuan",

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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, Jun

PY - 2017/10/30

Y1 - 2017/10/30

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 contribution

VL - 902

BT - Journal of Physics: Conference Series

PB - IOP Publishing

ER -

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

Abstract

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MMC2017/EMAG2017

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