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Control the growth direction of carbon nanofibers under direct current bias voltage applied microwave plasma enhanced chemical vapor deposition system  

Kim Sung-Hoon (Department of Nano Chemistry Materials & Engineering, Silla University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.15, no.5, 2005 , pp. 198-201 More about this Journal
Abstract
Carbon nanofibers were formed on silicon substrate which was applied by negative direct current (DC) bias voltage using microwave plasma-enhanced chemical vapor deposition method. Formation of carbon nanofibers were varied according to the variation of the applied bias voltage. At -250 V, we found that the growth direction of carbon nanofibers followed the applied direction of the bias voltage. Based on these results, we suggest one of the possible techniques to control the growth direction of the carbon nanofibers.
Keywords
Carbon nanofibers; Growth direction; Microwave plasma; Negative bias voltage;
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