Electronic properties of polypyrrole/polyindene composite/metal junctions

Date

1997

Authors

Bozkurt, A.
Ercelebi, C.
Toppare, L.

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Source Title

Synthetic Metals

Print ISSN

0379-6779

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Publisher

Elsevier

Volume

87

Issue

3

Pages

219 - 223

Language

English

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Abstract

Junction properties between conducting polymer composites of polypyrrole/polyindene (PPy/PIn) with different conductivities and metals like Pt, Au, Al and In have been investigated. Rectifying junctions were observed for low work function metals, In and Al; however, high work function metals, Pt and Au, were observed to form ohmic contacts to PPy/PIn composite in the sandwich geometry. The rectifying behavior of the metal/composite/Pt junctions improved when the conductivity of the composite was decreased from 1 to 0.01 S/cm. Using the ideal Schottky theory various junction parameters have been determined. All planar junctions were ohmic regardless of the conductivities of the samples.

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