UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Deformation Twinning of a Silver Nanocrystal under High Pressure

Huang, X; Yang, W; Harder, R; Sun, Y; Lu, M; Chu, YS; Robinson, IK; (2015) Deformation Twinning of a Silver Nanocrystal under High Pressure. Nano Letters , 15 (11) pp. 7644-7649. 10.1021/acs.nanolett.5b03568. Green open access

[img]
Preview
Text
Robinson_Xiaojing_NanoLett_AnvilAg_v4.pdf

Download (1MB) | Preview

Abstract

Within a high-pressure environment, crystal deformation is controlled by complex processes such as dislocation motion, twinning, and phase transitions, which change materials' microscopic morphology and alter their properties. Understanding a crystal's response to external stress provides a unique opportunity for rational tailoring of its functionalities. It is very challenging to track the strain evolution and physical deformation from a single nanoscale crystal under high-pressure stress. Here, we report an in situ three-dimensional mapping of morphology and strain evolutions in a single-crystal silver nanocube within a high-pressure environment using the Bragg Coherent Diffractive Imaging (CDI) method. We observed a continuous lattice distortion, followed by a deformation twining process at a constant pressure. The ability to visualize stress-introduced deformation of nanocrystals with high spatial resolution and prominent strain sensitivity provides an important route for interpreting and engineering novel properties of nanomaterials.

Type: Article
Title: Deformation Twinning of a Silver Nanocrystal under High Pressure
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1021/acs.nanolett.5b03568
Publisher version: http://dx.doi.org/10.1021/acs.nanolett.5b03568
Language: English
Additional information: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see: http://dx.doi.org/10.1021/acs.nanolett.5b03568.
Keywords: Nanocrystal, X-ray imaging, coherent diffractive imaging, deformation twinning
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/1487098
Downloads since deposit
85Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item