Electrodeless measurement of the in-plane anisotropy in the photoconductivity of an aligned polyfluorene film

Quantitative data on the in-plane anisotropy of charge transport in an alig ned polyfluorene (PF) film can be obtained thanks to the technique describe d in this communication (see Figure for principle). Since the method reveal ed here does not require the deposition of electrode layers, it can be more readily applied to the characterization of a large number and variety of s tructured, thin-layer Samples, free of the complications that often accompa ny DC measurements.