The role of precursor gases on the surface restructuring of catalyst films during carbon nanotube growth |
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| Authors: | S Pisana M Cantoro A Parvez S Hofmann AC Ferrari J Robertson |
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| Institution: | aElectrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thompson Ave., Cambridge, CB3 0FA, UK |
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| Abstract: | Catalyst films undergo considerable surface morphology restructuring prior to carbon nanotube nucleation, deeply influencing the nanostructures obtained. Here we study the influence of different gaseous atmospheres on the structure of thin Fe films. The morphology is influenced by process temperature and substrate interactions and varying the gas type and pressure can control the average catalyst island height. |
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| Keywords: | Carbon nanotubes Catalysts Chemical vapour deposition |
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