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This paper presents direct growth approach for production of graphene and carbon nanotubes in an on-chip manner towards integrated devices. Vertically aligned arrays of carbon nanotubes and edge-oriented graphene are synthesized by microwave plasma-enhanced chemical vapor deposition using methane and hydrogen as precursors. Cyclic voltammetry (CV) and electrochemical energy impedance measurements...
Here we report on long-term (300 to 600 hours) stability measures for implantable stimulating electrodes. We have considered several measures of stability as they refer to reliability of charge carrying capacity in implantable electrodes. We have designed and manufactured coatings for large area (1 to 2 mm2) stainless steel substrates. Materials tested were electrodeposited iridium oxide films, multi-walled...
Both carbon nanotubes (CNTs) and polypyrrole (PPy) have been investigated as materials for manufacturing high charge-transfer electrodes due to their outstanding performances. In this work, PPy and chemically-functionalized multi-walled CNTs (COOH-MWCNTs) and single-walled CNTs (COOH-SWCNTs) were electrodeposited from an aqueous solution to form a nanocomposite on the surface of platinum metal electrodes...
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