Transient time-of-flight methods with voltage pulse injection have been adapted to determine the field dependent mobility of holes in the electroluminescent polymer, MEH-PPV. The time-resolved current response confirms that gold forms an Ohmic contact to MEH-PPV and that there are very few traps in the polymer. These conclusions are in agreement with earlier interpretation of steady-state current-voltage measurements.
J. C. Scott, S. Ramos, G. G. Malliaras, "Transient Space-Charge-Limited Current Measurements of Mobility in a Luminescent Polymer" in Journal of Imaging Science and Technology, 1999, pp 233 - 236, https://doi.org/10.2352/J.ImagingSci.Technol.1999.43.3.art00007