Self-Assembly of 2D Gold Nanoparticle Superlattice in a Polymer Vesicle Layer Driven by Hydrophobic Interaction

Jong Dae Jang, Moongi Bae, Changwoo Do, Soo Hyung Choi, Joona Bang, Young Soo Han, Tae Hwan Kim

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Self-assembly of gold nanoparticles (AuNPs) into highly ordered superstructures provides a promising route toward fabricating materials with new functionalities or enhanced physical properties. Although self-assembly of AuNPs has garnered significant research attention recently, a highly ordered superlattice of AuNPs under a low concentration in a confined geometry formed by nonfunctionalized materials has not been reported. Herein, we investigate the self-assembly of a 2D AuNPs superlattice in a polymer vesicle layer using hydrophobic interactions, which exhibits centered rectangular lattice symmetry. To create the highly ordered AuNPs superlattice, the P(EGx-b-iPGEy) block copolymers that form the thickness of the hydrophobic vesicle layer comparable to the size of the AuNP are used as a template to control the AuNP degree of freedom. To the best of our knowledge, this study provides the first demonstration of a centered rectangular structure formation of AuNPs at the vesicle layer in 2D confined geometry.

Original languageEnglish
Pages (from-to)6736-6743
Number of pages8
JournalJournal of Physical Chemistry Letters
Volume12
Issue number28
DOIs
Publication statusPublished - 2021 Jul 22

Bibliographical note

Funding Information:
This work was funded by the National Research Foundation of Korea (NRF) Grants NRF-2020R1I1A3A04036603, NRF-2019M2A2A6A05102332, NRF-2020K1A3A7A09078089, NRF-2020M2D6A1044636, and NRF-2017M2A2A6A05017651 and by the HANARO Center of Korea Atomic Energy Research Institute.

Publisher Copyright:
© 2021 American Chemical Society

ASJC Scopus subject areas

  • General Materials Science
  • Physical and Theoretical Chemistry

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