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.
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|Publication status||Published - Jan 1 2003|
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics