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HAIT Journal of Science and Engineering Volume 1, Issue 4, pp. 782-810 © 2004 Holon Academic Institute of Technology | |||||
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Modeling of electronic transport in molecular doped polymers by the time-of-flight method
Nina R. Mirchin* and Aaron Peled
Department of Electrical and Electronics Engineering | Holon Academic Institute of Technology, 52 Golomb Str., Holon 58102, Israel Corresponding author: mirchin@hait.ac.il Received 3 August 2004, accepted 20 September 2004
| We present here a review of electrical transport models in Molecularly Doped Polymer (MDP) materials used for photocopiers and laser printers. The common method of electronic transport evaluation in these materials employs measurements of transient photocurrent by the time-of-flight (TOF) technique. TOF experiments use mainly the mobility concept to elucidate the mechanisms of electronic transport in MDP. However, additional experimental parameters are needed to account satisfactorily for the temperature and electric field activated complex transport phenomena observed in these materials. In particular, the spatial and energy dispersive experimental details have been left out in most experimental works while measuring the transient electrical conductivity in MDP. Additional information regarding the velocity distribution of the spreading charge packets and trapping models are detailed in this work for achieving a better understanding of the electronic charge transport in MDP. This review brings together the current theories extended for the electrical transport in these materials.
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