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Stephen Hofmann, Electrical Engineering Division, University of Cambridge
Tuesday 24 January 2006, 15:00-16:00
From C60 to C1000000: A review on carbon nanotube growth
- đ¤ Speaker: Stephen Hofmann, Electrical Engineering Division, University of Cambridge
- đ Date & Time: Tuesday 24 January 2006, 15:00 - 16:00
- đ Venue: T001 [Tower Seminar Room], Materials Science and Metallurgy, Department of
Abstract
Recent progress in bulk CNT growth has boosted their yield and availability. However, potential large scale application also requires controlled assembly and more deterministic control of CNT properties. It is commonly assumed that the catalyst metal forms a liquid intermediate and that bulk catalyst effects dominate CNT growth dynamics. Calculations of size-corrected melting points and carbon saturation often indicate minimum CNT synthesis temperatures >500C. This talk will focus on recent work at the Department of Engineering in Cambridge. In particular it will be shown how single-wall CNTs and carbon nanofibres can be grown at temperatures below 400C with a high level of control. Combined with ab-initio calculations, different perspectives of catalytic CNT growth will be reviewed.
Series This talk is part of the Electron Microscopy Group Seminars series.
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