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Issue 17, 2016
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Selectively assembled 2D microarrays from binary nanocrystals

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Abstract

Selective self-assembly processes were identified in an aged colloidal dispersion containing CeO2 cube-like and polyhedral nanocrystals as building blocks, resulting in two types of 2D microarrays. The cube-like nanocrystals were hierarchically self-assembled to form cubic nanoblocks with a mesostructure size of ca. 100 nm and a 2D microarray size of over 100 μm. The hierarchical assembly of the cube-like nanocrystals triggered the direct self-assembly of polyhedral nanocrystals, which then formed 2D microarrays. The hierarchical assembly of nanocrystals with a similar morphology was the dominant assembly process in the colloidal dispersion, and the cube-like nanocrystals tend to assemble through an oriented axis; otherwise, the fusion between the oriented nanocrystals is random.

Graphical abstract: Selectively assembled 2D microarrays from binary nanocrystals

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Publication details

The article was received on 02 Feb 2016, accepted on 15 Mar 2016 and first published on 15 Mar 2016


Article type: Communication
DOI: 10.1039/C6CE00282J
Citation: CrystEngComm, 2016,18, 3008-3014
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    Selectively assembled 2D microarrays from binary nanocrystals

    C. Hou, T. Liu, Y. Fan, H. Imai, R. Fan, H. Lin, Q. He, N. Wang, F. Dang and Z. Guo, CrystEngComm, 2016, 18, 3008
    DOI: 10.1039/C6CE00282J

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