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Can the Poole-Frenkel Model Explain Charge Carrier Transport in Disordered Organic Materials?

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Charge carrier transport in materials containing static charges is considered within the framework of the 1D transport model. We show that the mobility dependence on temperature and concentration of charged traps in infinite medium differs drastically from the prediction of the model of isolated charged trap (Poole-Frenkel model). We argue that for transport layer with finite thickness the Poole-Frenkel model can be applied only in the case of very low concentration of static charged centers, thus producing a negligible effect on the mobility field dependence.
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Document Type: Research Article

Publication date: 01 January 2001

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