Selectively assembled 2D microarrays from binary nanocrystals

Chuanxin Hou, Tao Liu, Yuqi Fan, Hiroaki Imai, Runhua Fan, Hong Lin, Qingliang He, Ning Wang, Feng Dang, Zhanhu Guo

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)3008-3014
Number of pages7
JournalCrystEngComm
Volume18
Issue number17
DOIs
Publication statusPublished - 2016 May 7

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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