Abstract
Colloidal assembly in emulsion drops provides fundamental tools for studying optimum particle arrangement under spherical confinement and practical means for producing photonic microparticles. Recent progress has revealed that energetically favored cluster configurations are different from conventional supraballs, which could enhance optical performance. This paper reviews state-of-the-art emulsion-templated colloidal clusters, and particularly focuses on recently reported novel structures such as icosahedral, decahedral, and single-crystalline face-centered cubic (fcc) clusters. We classify the clusters according to the number of component particles as small (N < O(102)), medium (O(102) ≤ N ≤ O(104)), and large (N ≥ O(105)). For each size of clusters, we discuss the detailed structures, mechanisms of cluster formation, and optical properties and potential applications. Finally, we outline current challenges and questions that require further investigation.
Original language | English |
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Pages (from-to) | 18576-18594 |
Number of pages | 19 |
Journal | Nanoscale |
Volume | 12 |
Issue number | 36 |
DOIs | |
State | Published - 28 Sep 2020 |
Bibliographical note
Funding Information:This work was supported by the National Research Foundation (NRF) (2018M3A7B8060189 and 2019K1A3A1A14012962) funded by the Ministry of Science and ICT (MSIT).*%blankline%*
Funding Information:
This work was supported by the National Research Foundation (NRF) (2018M3A7B8060189 and 2019K1A3A1A14012962) funded by the Ministry of Science and ICT (MSIT).
Publisher Copyright:
© The Royal Society of Chemistry.