Direct growth of flexible carbon nanotube electrodes

Jun Chen*, Andrew I. Minett, Yong Liu, Carol Lynam, Peter Sherrell, Caiyun Wang, Gordon G. Wallace

*Corresponding author for this work

Research output: Contribution to journalArticle

151 Citations (Scopus)

Abstract

The growth of carbon nanotube networks integrated into a carbon layer (CL) on insulating graphitic carbon and on metallic substrates by modifying the CVD synthesis was investigated. A thin film of iron(III) p-toluenesulfonate (Fe(III)pTS) catalyst was spin-coated onto quartz plates from organic solutions. The resultant CNT films were observed to be very much unlike to those grown using conventional catalyst. The CNT/CL paper was characterized using a range of methods. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirmed the top layer indeed consisted of CNTs, whilst SEM of the cross-sectional area revealed a highly porous 3D structured CNT network grown on top of a dense CL with less than 1 μm thickness. The Fe content of the CL layer was measured to be <5% using energy dispersive X-ray analysis and thermogravimetric analysis. It was observed that the the CNT/CL paper electrodes are lightweight, flexible, and highly conductive.

Original languageEnglish
Pages (from-to)566-570
Number of pages5
JournalAdvanced Materials
Volume20
Issue number3
DOIs
Publication statusPublished - 4 Feb 2008

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