Electronic properties of polypyrrole/polyindene composite/metal junctions
Date
1997
Authors
Bozkurt, A.
Ercelebi, C.
Toppare, L.
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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.
Source Title
Synthetic Metals
Publisher
Elsevier
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Keywords
Composite/metal junctions, Aluminum, Aromatic polymers, Conductive films, Current voltage characteristics, Electric conductivity of solids, Electronic properties, Gold, Indium, Organometallics, Platinum, Polyolefins, Schottky barrier diodes, Capacitance voltage characteristics, Polyindene, Polypyrrole, Conductive plastics
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English