| Abstract: | The electron-hole transport in poly(diphenylene phthalide) films has been investigated. The dependence of the drift mobility
of charge carriers on the excessive mechanical pressure has been studied using the time-of-flight method. It has been revealed
that, with an increase in the thickness of the polymer film, the dispersive transport of charge carries gives way to the quasi-dispersive
transport. In thin films in the prethreshold range (i.e., before switching of the samples to the highly conductive state under
excessive pressure), the electron mobility increases and exceeds the hole mobility. The experimental results have been discussed
in the framework of the model describing the transport through the channels formed by metastable electron-hole pairs. |
