Nanocrystal microemulsions: Surfactant-stabilized size and shape

Robert L. Whetten, William M. Gelbart

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We formulate an analogy between thermodynamically stable water/oil microemulsions and surfactant-stabilized nanocrystal dispersions, with the goal of accounting for how specific sizes and shapes of nanocrystals might become dominant in equilibrated solutions of, for example, alkali halides or semiconductors in organic solvents. Qualitative estimates of the energetics - i.e., of the dependence of lattice energy on crystal dimensions - suggest that the size and shape distributions can be quite narrow, with their average properties controlled primarily by the solution composition, in particular the ratio of surfactant to crystalline species.

Original languageEnglish (US)
Pages (from-to)3544-3549
Number of pages6
JournalJournal of physical chemistry
Volume98
Issue number13
DOIs
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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