Series resistance determination of Au/Polypyrrole/p-Si/Al structure by current–voltage measurements at low temperatures

The current–voltage ( I–V) characteristics of Polypyrrole(PPy)/p-Si/Al structure have been investigated as a function of temperature. A modified Norde function combined with conventional forward I–V method has been used to extract the junction parameters including the ideality factor, barrier height...

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Veröffentlicht in:Materials Science & Engineering C 2009-05, Vol.29 (4), p.1486-1490
Hauptverfasser: Aydoğan, Ş., Sağlam, M., Türüt, A., Onganer, Y.
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container_issue 4
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container_title Materials Science & Engineering C
container_volume 29
creator Aydoğan, Ş.
Sağlam, M.
Türüt, A.
Onganer, Y.
description The current–voltage ( I–V) characteristics of Polypyrrole(PPy)/p-Si/Al structure have been investigated as a function of temperature. A modified Norde function combined with conventional forward I–V method has been used to extract the junction parameters including the ideality factor, barrier height and series resistance. Norde function has been compared with the Cheung functions and it has been seen that there is a good agreement with both method for the barrier height values. However, the values of series resistance have very different especially towards to the lower temperatures. This is attributed to non-ideal I–V characteristics of the Au/PPy/p-Si/Al structure and non-pure Thermionic emission theory due to the low temperature effects.
doi_str_mv 10.1016/j.msec.2008.12.006
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subjects Barrier height
Conducting polymers
Ideality factor
Polypyrrole
Series resistance
title Series resistance determination of Au/Polypyrrole/p-Si/Al structure by current–voltage measurements at low temperatures
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