A Directional Entropic Force Approach to Assemble Anisotropic Nanoparticles into Superlattices

Abstract

Not touching but sticking: By using cationic surfactant micelles as depletants, a directional entropic force approach (DEFA) assembles anisotropic nanoparticles into superlattices in solution. The micelles induce the face-to-face stacking of the nanoparticles to maximize the system's entropy. The shape of the nanoparticles determines the symmetry of the superlattice, the interparticle spacing is determined by the charged surfactant.

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Document Details

Document Type
Technical Report
Publication Date
Nov 07, 2013
Accession Number
ADA617258

Entities

People

  • Byeongdu Lee
  • Chad Mirkin
  • Kaylie L. Young
  • Michael Engel
  • Michelle L Personick
  • Pablo F Damasceno
  • Reiner Bleher
  • Sharon Glotzer
  • Stacey N. Barnaby
  • Tao Li

Organizations

  • Northwestern University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Chemical Engineering
  • Chemistry
  • Crystal Lattices
  • Crystal Structure
  • Crystals
  • Diffraction
  • Electron Microscopy
  • Macromolecules
  • Materials
  • Materials Laboratories
  • Materials Science
  • Nanoparticles
  • Particles
  • Physical Properties
  • Scattering
  • Superlattices
  • Surface Plasmon Resonance

Readers

  • Materials Science and Engineering.
  • Nanocomposite Materials Science
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Biotechnology
  • Space
  • Space - Spacecraft Maneuvers