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Effect of Polymer Chain Length on the Superlattice Assembly of Functionalized Gold Nanoparticles

Journal Article · · Langmuir
We report on the assembly of gold nanoparticle (AuNPs) superlattices at the liquid/vapor interface and in the bulk of their suspensions. Interparticle distances in the assemblies are achieved on multiple length scales by varying chain lengths of surface grafted AuNPs by polyethylene glycol (PEG) with molecular weights in the range 2000–40,000 Da. Crystal structures and lattice constants in both 2D and 3D assemblies are determined by synchrotron-based surface-sensitive and small-angle X-ray scattering. Here, assuming knowledge of grafting density, we show that experimentally determined interparticle distances are adequately modeled by spherical brushes close to the θ point (Flory–Huggins parameter, x ≈ 1/2) for 2D superlattices at a liquid interface and a nonsolvent (χ = ∞) for the 3D dry superlattices.
Research Organization:
Ames Laboratory (AMES), Ames, IA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; AC02-07CH11358; SC0012704
OSTI ID:
1823631
Alternate ID(s):
OSTI ID: 1821735
OSTI ID: 1823158
OSTI ID: 1856853
Report Number(s):
BNL--222188-2021-JAAM; IS-J--10,563
Journal Information:
Langmuir, Journal Name: Langmuir Journal Issue: 33 Vol. 37; ISSN 0743-7463
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (32)

Nanoparticle Superlattices: The Roles of Soft Ligands journal September 2017
Establishing the Design Rules for DNA-Mediated Programmable Colloidal Crystallization journal May 2010
Nanoscale Forces and Their Uses in Self-Assembly journal July 2009
Poly(N-isopropylacrylamide)-grafted gold nanoparticles at the vapor/water interface journal March 2021
Nanoparticle decoration with surfactants: Molecular interactions, assembly, and applications journal February 2017
Self-Assembly of Colloidal Nanocrystals: From Intricate Structures to Functional Materials journal August 2016
Nanoparticle Superlattices with Negative Thermal Expansion (NTE) Coefficients journal April 2021
Ion-Specific Interfacial Crystallization of Polymer-Grafted Nanoparticles journal July 2017
The Effects of Temperature on the Assembly of Gold Nanoparticle by Interpolymer Complexation journal February 2021
Two-Dimensional Crystallization of Poly( N -isopropylacrylamide)-Capped Gold Nanoparticles journal June 2018
Effect of (Poly)electrolytes on the Interfacial Assembly of Poly(ethylene glycol)-Functionalized Gold Nanoparticles journal January 2019
Unusual Effect of Iodine Ions on the Self-Assembly of Poly(ethylene glycol)-Capped Gold Nanoparticles journal December 2019
Interfacial and Bulk Assembly of Anisotropic Gold Nanostructures: Implications for Photonics and Plasmonics journal July 2020
Temperature-Induced Tunable Assembly of Columnar Phases of Nanorods journal April 2020
Soft Skyrmions, Spontaneous Valence and Selection Rules in Nanoparticle Superlattices journal May 2017
Self-Assembled Monolayers of Thiolates on Metals as a Form of Nanotechnology journal April 2005
Structural Transitions in Nanoparticle Assemblies Governed by Competing Nanoscale Forces journal May 2013
Two-Dimensional DNA-Programmable Assembly of Nanoparticles at Liquid Interfaces journal May 2014
Tunable Nanoparticle Arrays at Charged Interfaces journal September 2014
DNA-programmable nanoparticle crystallization journal January 2008
DNA-guided crystallization of colloidal nanoparticles journal January 2008
Nanoscale form dictates mesoscale function in plasmonic DNA–nanoparticle superlattices journal April 2015
Non-equilibrium anisotropic colloidal single crystal growth with DNA journal November 2018
Crystal engineering with DNA journal February 2019
Salt Mediated Self-Assembly of Poly(ethylene glycol)-Functionalized Gold Nanorods journal December 2019
Small is different: energetic, structural, thermal, and mechanical properties of passivated nanocluster assemblies journal January 2004
Macroscopic and tunable nanoparticle superlattices journal January 2017
Topological structure prediction in binary nanoparticle superlattices journal January 2017
Assembling and ordering polymer-grafted nanoparticles in three dimensions journal January 2017
The hard sphere diameter of nanocrystals (nanoparticles) journal March 2020
Ionic depletion at the crystalline Gibbs layer of PEG-capped gold nanoparticle brushes at aqueous surfaces journal December 2017
Exploiting the colloidal nanocrystal library to construct electronic devices journal April 2016

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