Studies of liquid crystalline self-assembly of GdF3 nanoplates by in-plane, out-of-plane SAXS

Taejong Paik, Dong Kyun Ko, Thomas R. Gordon, Vicky Doan-Nguyen, Christopher B. Murray

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

Directed self-assembly of colloidal nanocrystals into ordered superlattices enables the preparation of novel metamaterials with diverse functionalities. Structural control and precise characterization of these superlattices allow the interactions between individual nanocrystal building blocks and the origin of their collective properties to be understood. Here, we report the directed liquid interfacial assembly of gadolinium trifluoride (GdF3) nanoplates into liquid crystalline assemblies displaying long-range orientational and positional order. The macroscopic orientation of superlattices is controlled by changing the subphases upon which liquid interfacial assembly occurs. The assembled structures are characterized by a combination of transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS) measurements performed on a laboratory diffractometer. By doping GdF3 nanoplates with europium (Eu3+), luminescent phosphorescent superlattices with controlled structure are produced and enable detailed structural and optical characterization.

Original languageEnglish (US)
Pages (from-to)8322-8330
Number of pages9
JournalACS Nano
Volume5
Issue number10
DOIs
StatePublished - Oct 25 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Keywords

  • SAXS
  • liquid crystalline
  • nanocrystals
  • nanoplates
  • self-assembly
  • superlattices

Fingerprint

Dive into the research topics of 'Studies of liquid crystalline self-assembly of GdF<sub>3</sub> nanoplates by in-plane, out-of-plane SAXS'. Together they form a unique fingerprint.

Cite this