Nature of charge carriers in disordered molecular solids: Are polarons compatible with observations? - art. no. 126601

Polaronic theories for charge transport in disordered organic solids, parti cularly molecularly doped polymers, have been plagued by issues of internal consistency related to the magnitude of physical parameters. We present a natural resolution of the problem by showing that, in the presence of corre lated disorder, polaronic carriers with binding energies Delta similar to 5 0-500 meV and transfer integrals J similar to 1-20 mev are completely consi stent with the magnitudes of field and temperature dependent mobilities obs erved.