Record number :
Title of article :
Effects of the pressure on growth of carbon nanotubes by plasma-enhanced hot filament CVD at low substrate temperature
Author/Authors :
B.B Wang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
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Abstract :
Carbon nanotubes were prepared on silicon wafers deposited with NiFe catalyst films and Ta buffer films by plasma-enhanced hot filament chemical vapor deposition, and growth of the carbon nanotubes under different pressure were investigated by scanning electron microscopy. It is found that the average length of the carbon nanotubes grown at the pressure of 15 Torr is larger than that at the pressure of 30 Torr. But, it is difficult to grow the carbon nanotubes when the pressure is 5 Torr. These indicate that the pressure greatly influences on the growth of carbon nanotubes. Combined with theories related to thermodynamics of alloy and glow discharge, it is analyzed and discussed that the pressure affects the growth of the carbon nanotubes.
Keywords :
Glow discharge , Chemical vapor deposition , Carbon nanotubes
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
Link To Document :