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Title of article :
Surface morphology and field emission characteristics of carbon nanofiber films grown by chemical vapor deposition on alloy catalyst
Author/Authors :
K Kamada، نويسنده , , T Ikuno، نويسنده , , S Takahashi، نويسنده , , T Oyama، نويسنده , , T Yamamoto، نويسنده , , M Kamizono، نويسنده , , S Ohkura، نويسنده , , S Honda، نويسنده , , M Katayama، نويسنده , , T Hirao، نويسنده , , K Oura، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
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Abstract :
Carbon nanofiber (CNF) films have been successfully grown on Pd-Se, Fe-Ni, and Ni-Cu alloy catalysts at low temperatures by a thermal chemical vapor deposition method. Among these alloy catalysts, Ni-Cu alloy catalyst was found to be most suitable for low temperature growth of CNF (400 °C). Using Pd-Se and Fe-Ni alloy catalysts, CNFs were grown at the lowest temperature of 500 °C. The CNFs grown using Pd-Se catalyst were found to have more defective structure than that obtained with the other catalysts, and exhibited excellent field emission property (threshold field is estimated about 1.1 V/mm). It is likely that defects play a role as electron emission sites.
Keywords :
Carbon nanotube , Field emission , Alloy catalyst , Carbon nanofiber
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
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Link To Document :