Effect of Oxidant/ Monomer Ratio on the Electrical Properties of Polypyrrole in Tantalum Capacitors

Gonçalo Gonçalves; Elvira Fortunato; J.I. Martins; Rodrigo Martins

doi:10.4028/www.scientific.net/MSF.514-516.43

Paper Titles

Microstructure and Thermal Features of a-Si:H and nc-Si:H Thin Films Produced by Rf Sputtering
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Poly-Si Thin Film Transistors: Effect of Metal Thickness on Silicon Crystallization
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Organic Materials for Active Layers in Transistors: Study of the Electrical Stability Properties
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Structural and Optical Characterization of Light Emitting InGaN/GaN Epitaxial Layers
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Effect of Oxidant/ Monomer Ratio on the Electrical Properties of Polypyrrole in Tantalum Capacitors
p.43

Electrical Imaging Map on Polycrystalline Diamond Films and Diodes and Structural Relationship Obtained by Micro-Raman
p.48

Electrical Properties of Fluorine Doped Diamond Like Carbon
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Electrical Performances of Low Temperature Annealed Hafnium Oxide Deposited at Room Temperature
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Role of Hydrogen Plasma on the Electrical and Optical Properties of Indium Zinc Transparent Conductive Oxide
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HomeMaterials Science ForumMaterials Science Forum Vols. 514-516Effect of Oxidant/ Monomer Ratio on the Electrical...

Effect of Oxidant/ Monomer Ratio on the Electrical Properties of Polypyrrole in Tantalum Capacitors

Abstract:

In this work, the relation between oxidant/monomer ratio and the electrical conductivity of polypyrrole was studied using different ratios. We achieved a maximum value for electrical conductivity of 7.5 S/cm for a ratio of 2:1. We also developed a chemical dip-coating process to produce the cathode layer in tantalum capacitors. We obtained capacitances of about 80 µF after 8 cycles using the sequence Monomer/Oxidant.

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Materials Science Forum (Volumes 514-516)

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43-47

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.514-516.43

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Online since:

May 2006

Authors:

Gonçalo Gonçalves, Elvira Fortunato, J.I. Martins, Rodrigo Martins

Keywords:

Chemical Polymerization, Polypyrrole, Tantalum Capacitors

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