Charge transport in hexagonal columnar liquid crystals self-organized from supramolecular cylinders based on acene-functionalized dendrons

I. Shiyanovskaya, K. D. Singer, V. Percec, T. K. Bera, Y. Miura, M. Glodde

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

We report measurements of time-of-flight charge carrier mobility and thermal optical polarized microscopy on a new class of hexagonal columnar (formula presented) liquid crystals (LC) self-organized from supramolecular cylinders self-assembled from acene functionalized dendrons. We discuss the temperature and electric field-independent high hole mobility of (formula presented) of fluorinated tapered first generation dendrons that contain pyrene and naphthalene groups in their core and self-assemble into supramolecular nanocylinders. The anomalous temperature behavior of the mobility is consistent with polaron transport mechanisms. Studies of time-of-flight transients, which reveal evidence for dynamic defects with lifetimes in the range of (formula presented) are presented as aspects of charge generation and recombination kinetics.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume67
Issue number3
DOIs
Publication statusPublished - Jan 1 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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