Colloidal Binary Supracrystals with Tunable Structural Lattices

doi:10.1021/jacs.8b05643

Title: Colloidal Binary Supracrystals with Tunable Structural Lattices

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Abstract

Here, colloidal binary supracrystals (SCs) possessing tunable and ordered assembly of two different types of functional nanoparticles (NPs) represent a unique class of artificial materials for both fundamental study and technological applications, but related study has been limited due to substantial challenges in materials growth. Here we report the controlled growth of colloidal binary SCs consisting of Au and Fe ₃O ₄ NPs via an oil-in-water emulsion process. The size, stoichiometry, and lattice structure of the SCs can be broadly tuned by the growth parameters. Furthermore, our growth method is general and applicable to other NP building blocks to achieve various functional binary SCs. These as-grown free-standing binary SCs should therefore enable new test beds for exploring different nanoscale interactions ranging from the formation and stability of nanoscale binary phase to the emerging magneto-plasmonic coupling physics.

Authors:

Wang, Peng-peng ^[1];

^[2]; Zhu, Yimei ^[3];

^[1]

Univ. of Maryland, College Park, MD (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); Temple Univ., Philadelphia, PA (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)

Publication Date:: 2018-07-10

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1476758

Report Number(s):: BNL-209145-2018-JAAM
Journal ID: ISSN 0002-7863

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Journal of the American Chemical Society

Additional Journal Information:: Journal Volume: 140; Journal Issue: 29; Journal ID: ISSN 0002-7863

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Wang, Peng-peng, Qiao, Qiao, Zhu, Yimei, and Ouyang, Min. Colloidal Binary Supracrystals with Tunable Structural Lattices.  United States: N. p., 2018. 
        Web.  doi:10.1021/jacs.8b05643.

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                    Wang, Peng-peng, Qiao, Qiao, Zhu, Yimei, & Ouyang, Min. Colloidal Binary Supracrystals with Tunable Structural Lattices.  United States.  doi:10.1021/jacs.8b05643.

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                    Wang, Peng-peng, Qiao, Qiao, Zhu, Yimei, and Ouyang, Min. Tue .  
        "Colloidal Binary Supracrystals with Tunable Structural Lattices".  United States.  doi:10.1021/jacs.8b05643.  https://www.osti.gov/servlets/purl/1476758.

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@article{osti_1476758,

  title        = {Colloidal Binary Supracrystals with Tunable Structural Lattices},

  author       = {Wang, Peng-peng and Qiao, Qiao and Zhu, Yimei and Ouyang, Min},

  abstractNote = {Here, colloidal binary supracrystals (SCs) possessing tunable and ordered assembly of two different types of functional nanoparticles (NPs) represent a unique class of artificial materials for both fundamental study and technological applications, but related study has been limited due to substantial challenges in materials growth. Here we report the controlled growth of colloidal binary SCs consisting of Au and Fe3O4 NPs via an oil-in-water emulsion process. The size, stoichiometry, and lattice structure of the SCs can be broadly tuned by the growth parameters. Furthermore, our growth method is general and applicable to other NP building blocks to achieve various functional binary SCs. These as-grown free-standing binary SCs should therefore enable new test beds for exploring different nanoscale interactions ranging from the formation and stability of nanoscale binary phase to the emerging magneto-plasmonic coupling physics.},

  doi          = {10.1021/jacs.8b05643},

  journal      = {Journal of the American Chemical Society},

  number       = 29,

  volume       = 140,

  place        = {United States},

  year         = {2018},

  month        = {7}

}

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DOI: 10.1021/jacs.8b05643

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