The role of precursor gases on the surface restructuring of catalyst films during carbon nanotube growth
نویسندگان
چکیده
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. r 2006 Elsevier B.V. All rights reserved. PACS: 68.35.Ct; 68.37.Ps; 68.55.Jk
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