ICAMS / Interdisciplinary Centre for Advanced Materials Simulation

Publications

Charge transport generated by electron beam in molecularly doped polymers

A. P. Tyutnev, V. S. Saenko, J. Kundin, E. D. Pozhidaev.

Journal of Imaging Science and Technology, 45, 297-302, (2001)

Abstract
Charge carrier transport in a typical molecularly doped polymer has been studied by the time-of-flight and radiation induced conductivity methods. In the time range bracketing the conventional transit time a strong disagreement between two sets of data has been found. Unlike time-of-flight signal that rather closely reproduces all salient features reported in literature, the radiation induced conductivity transient lacks the plateau. In fact, it exhibits a strict power law decay t −0.5 changing at long times to t −1 or t −1.5 patterns due to bimolecular recombination or true transit time effects, respectively. At short times, both transients are described by the same t −0.5 dependence. These facts suggest the dispersive rather than the Gaussian charge transport.


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