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Manipulations of Nanoparticle Chain Aggregates in Transmission Electron Microscopy

Published online by Cambridge University Press:  01 February 2011

Yong J. Suh ,
Sergey V. Prikhodko  and
Sheldon K. Friedlander
Yong J. Suh
Affiliation:
Department of Chemical Engineering, University of California, Los Angeles, CA 90095, U.S.A.
Sergey V. Prikhodko
Affiliation:
Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, U.S.A.
Sheldon K. Friedlander
Affiliation:
Department of Chemical Engineering, University of California, Los Angeles, CA 90095, U.S.A.
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Abstract

We have developed a nanostructure manipulation device (NSMD) to apply tension to a single nanoparticle chain aggregate (NCA) mounted in a transmission electron microscope. The system was used for studying stretching and contraction of carbon chain aggregates. Carbon NCAs generated by laser ablation of a graphite target were stretched and bent using the NSMD. The NCA was stretched up to 310% of its initial length before becoming taut and then breaking. The broken NCA contracted rapidly showing its elastic behavior. The NCA was plastically deformed during stretching through unraveling of kinks along the NCA. However, the unraveling was irreversible so that the chain formed a loop with a big curvature as its two ends were brought closer together.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 727: Symposium R – Nanostructured Interfaces , 2002 , R7.6
Copyright
Copyright © Materials Research Society 2002

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