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Issue 22, 2015
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Two-step self-assembly of hierarchically-ordered nanostructures

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Due to their unique size- and shape-dependent physical and chemical properties, highly hierarchically-ordered nanostructures have attracted great attention with a view to application in emerging technologies, such as novel energy generation, harvesting, and storage devices. The question of how to get controllable ensembles of nanostructures, however, still remains a challenge. This concept paper first summarizes and clarifies the concept of the two-step self-assembly approach for the synthesis of hierarchically-ordered nanostructures with complex morphology. Based on the preparation processes, two-step self-assembly can be classified into two typical types, namely, two-step self-assembly with two discontinuous processes and two-step self-assembly completed in one-pot solutions with two continuous processes. Compared to the conventional one-step self-assembly, the two-step self-assembly approach allows the combination of multiple synthetic techniques and the realization of complex nanostructures with hierarchically-ordered multiscale structures. Moreover, this approach also allows the self-assembly of heterostructures or hybrid nanomaterials in a cost-effective way. It is expected that widespread application of two-step self-assembly will give us a new way to fabricate multifunctional nanostructures with deliberately designed architectures. The concept of two-step self-assembly can also be extended to syntheses including more than two chemical/physical reaction steps (multiple-step self-assembly).

Graphical abstract: Two-step self-assembly of hierarchically-ordered nanostructures

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Publication details

The article was received on 12 Feb 2015, accepted on 30 Apr 2015 and first published on 30 Apr 2015

Article type: Highlight
DOI: 10.1039/C5TA01162K
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J. Mater. Chem. A, 2015,3, 11688-11699

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    Two-step self-assembly of hierarchically-ordered nanostructures

    Q. Liu, Z. Sun, Y. Dou, J. H. Kim and S. X. Dou, J. Mater. Chem. A, 2015, 3, 11688
    DOI: 10.1039/C5TA01162K

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