Issue 2, 2013

Compression stiffness of porous nanostructures from self-assembly of branched nanocrystals

Abstract

The novelty and potential of self-assembled superstructures reside not only in the more commonly investigated optical, magnetic and charge transport properties, but also in their mechanical behaviour, which is strictly dependent on their structural morphology. We report here nanocompression tests on highly porous, geometrically interlocked superstructures fabricated by self-assembly of colloidal CdSe/CdS octapod shaped nanocrystals. We show that, despite being formed via weak van der Waals forces, these superstructures present an elastic response similar to that of porous materials and indeed were found to be modelled fittingly by classical open-cell models. The simple model based on the relative density of the superstructures holds also when the chemical composition of the superstructures is modified by processes such as cation exchange of Cd2+ with Cu+ and oxygen plasma treatment.

Graphical abstract: Compression stiffness of porous nanostructures from self-assembly of branched nanocrystals

Supplementary files

Article information

Article type
Paper
Submitted
04 Sep 2012
Accepted
18 Nov 2012
First published
21 Nov 2012

Nanoscale, 2013,5, 681-686

Compression stiffness of porous nanostructures from self-assembly of branched nanocrystals

L. Ceseracciu, K. Miszta, F. De Angelis, S. Marras, M. Prato, R. Brescia, A. Scarpellini and L. Manna, Nanoscale, 2013, 5, 681 DOI: 10.1039/C2NR32590J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements