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Conduction mechanism of poly (P-Aminobenzaldehyde) terminated by phenylene diamine doped with | ||
| Journal of Basrah Researches (Sciences) | ||
| Article 1, Volume 33, Issue 2, 2007, Pages 66-75 PDF (0 K) | ||
| Author | ||
| H. K. Ibrahim | ||
| Abstract | ||
| The electrical properties of poly (P-Aminobenzaldehyde) terminated by pheneylene diamine doped with Na2[Fe(CN)5.NO].2H2O films prepared by cast method have been investigated. The (Current – Voltage) and (Conductivity – temperature) relationships are measured in the voltage and temperature ranges (5-120) V and (288 -348) K respectively. The resistance of the doped films is found to have a negative thermal coefficient. The activation energy at temperature (288 -348)K about (0.175)eV is found from the ohmic region of the dark (current – voltage) characteristic. The conductivity at room temperature was equal to 2.5×10-14 (S.cm-1). The deviation from ohm's law has been analysed in term of the available conduction theories. Hopping conduction mechanism was concluded to be the most probable as interpreting the behavior of charge transport that supplied by injector electrodes. | ||
| Keywords | ||
| electrical properties; conductivity; Hopping conduction mechanism | ||
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