Exploring Photocarrier Generation and Recombination in a Smectic Semiconductor \textit{via} Transport Simulations

Photocarrier generation and charge transport in the smectic B phase of the liquid crystalline semiconductor 2-(4'-octylphenyl)-6-dodecyloxynapthalene (8PNPO12) have been investigated by using the time of flight (TOF) technique as a function of light intensity, electric field, and wavelength. The results probe both the low-intensity and space-charge perturbed regimes. The sharply different hole and electron TOF transients are quantitatively analyzed using comprehensive transport simulations to explore exciton dynamics, exciton decay, and bimolecular recombination.