Binary Superlattices of Gold Nanoparticles in Two Dimensions

Kim, Hyeong Jin; Wang, Wenjie; Zhang, Honghu; Freychet, Guillaume; Ocko, Benjamin M.; Travesset, Alex; Mallapragada, Surya K.; Vaknin, David

doi:10.1021/acs.jpclett.2c00625

Title: Binary Superlattices of Gold Nanoparticles in Two Dimensions

Abstract

Here, we have created two-dimensional (2D) binary superlattices by cocrystallizing gold nanoparticles (AuNPs) of two distinct sizes into $$\sqrt{3}$$ x $$\sqrt{3}$$ and 2 x 2 complex binary superlattices, derived from the hexagonal structures of the single components. The building blocks of these binary systems are AuNPs that are functionalized with different chain lengths of poly(ethylene glycol) (PEG). The assembly of these functionalized NPs at the air–water interface is driven by the presence of salt, causing PEG-AuNPs to migrate to the aqueous surface and assemble into a crystalline lattice. We have used liquid surface X-ray reflectivity (XR) and grazing incidence small-angle X-ray scattering (GISAXS) to examine the assembly and crystallization at the liquid interface.

Authors:

^[1];

^[2];

^[3]; Freychet, Guillaume ^[3];

^[3];

^[4];

^[1];

^[1]

Ames Lab., and Iowa State Univ., Ames, IA (United States)
Ames Lab., Ames, IA (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Ames Laboratory, and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States

Publication Date:: Tue Apr 12 00:00:00 EDT 2022

Research Org.:: Ames Laboratory (AMES), Ames, IA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1868474

Alternate Identifier(s):: OSTI ID: 1887528

Report Number(s):: IS-J-10,807; BNL-223292-2022-JAAM
Journal ID: ISSN 1948-7185

Grant/Contract Number:: AC02-07CH11358; SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Physical Chemistry Letters

Additional Journal Information:: Journal Volume: 13; Journal Issue: 15; Journal ID: ISSN 1948-7185

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats


                    Kim, Hyeong Jin, Wang, Wenjie, Zhang, Honghu, Freychet, Guillaume, Ocko, Benjamin M., Travesset, Alex, Mallapragada, Surya K., and Vaknin, David. Binary Superlattices of Gold Nanoparticles in Two Dimensions.  United States: N. p., 2022. 
Web.  doi:10.1021/acs.jpclett.2c00625.

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                    Kim, Hyeong Jin, Wang, Wenjie, Zhang, Honghu, Freychet, Guillaume, Ocko, Benjamin M., Travesset, Alex, Mallapragada, Surya K., & Vaknin, David. Binary Superlattices of Gold Nanoparticles in Two Dimensions.  United States.  https://doi.org/10.1021/acs.jpclett.2c00625

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                    Kim, Hyeong Jin, Wang, Wenjie, Zhang, Honghu, Freychet, Guillaume, Ocko, Benjamin M., Travesset, Alex, Mallapragada, Surya K., and Vaknin, David. Tue .  
"Binary Superlattices of Gold Nanoparticles in Two Dimensions".  United States.  https://doi.org/10.1021/acs.jpclett.2c00625.  https://www.osti.gov/servlets/purl/1868474.

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@article{osti_1868474,

  title        = {Binary Superlattices of Gold Nanoparticles in Two Dimensions},

  author       = {Kim, Hyeong Jin and Wang, Wenjie and Zhang, Honghu and Freychet, Guillaume and Ocko, Benjamin M. and Travesset, Alex and Mallapragada, Surya K. and Vaknin, David},

  abstractNote = {Here, we have created two-dimensional (2D) binary superlattices by cocrystallizing gold nanoparticles (AuNPs) of two distinct sizes into $\sqrt{3}$ x $\sqrt{3}$ and 2 x 2 complex binary superlattices, derived from the hexagonal structures of the single components. The building blocks of these binary systems are AuNPs that are functionalized with different chain lengths of poly(ethylene glycol) (PEG). The assembly of these functionalized NPs at the air–water interface is driven by the presence of salt, causing PEG-AuNPs to migrate to the aqueous surface and assemble into a crystalline lattice. We have used liquid surface X-ray reflectivity (XR) and grazing incidence small-angle X-ray scattering (GISAXS) to examine the assembly and crystallization at the liquid interface.},

  doi          = {10.1021/acs.jpclett.2c00625},

  journal      = {Journal of Physical Chemistry Letters},

  number       = 15,

  volume       = 13,

  place        = {United States},

  year         = {Tue Apr 12 00:00:00 EDT 2022},

  month        = {Tue Apr 12 00:00:00 EDT 2022}

}

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Title: Binary Superlattices of Gold Nanoparticles in Two Dimensions

Abstract

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