Title :
Field Emission Characteristics of Carbon Nanocoils Grown on Copper Micro-tips
Author :
Sung, Woo-Yong ; Kim, Wal-Jun ; Yeon, Soon-Chang ; Lee, Seung-Min ; Lee, Ho-Young ; Kim, Yong-Hyup
Author_Institution :
Sch. of Mech. & Aerosp. Eng., Seoul Nat. Univ.
Abstract :
Carbon nanocoils (CNCs) were synthesized by using thermal chemical vapor deposition of C2H2 and NH3 gas at 600degC over copper micro-tips formed on silicon substrate. Copper micro-tips were formed by the high current pulse electroplating in order to investigate the effect of the surface morphology of the substrate on the growth of carbon nanostructures. We prepared three kinds of substrates with surface of electroplated copper micro-tips, electroplated copper film and evaporated copper film. Among the substrates, CNCs grown on the copper micro-tips showed the highest field emission characteristics
Keywords :
CVD coatings; carbon; field emission; nanostructured materials; surface morphology; C; C2H2 gas; Co-Si; NH3 gas; carbon nanocoils; carbon nanostructure growth; electroplated copper film; electroplated copper micro-tips; evaporated copper film; field emission properties; high current pulse electroplating; silicon substrate; surface morphology; thermal chemical vapor deposition; Aerospace engineering; Carbon dioxide; Chemical technology; Copper; Materials science and technology; Nanostructures; Rough surfaces; Substrates; Surface morphology; Surface roughness;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2006 and the 2006 50th International Field Emission Symposium., IVNC/IFES 2006. Technical Digest. 19th International
Conference_Location :
Guilin
Print_ISBN :
1-4244-0401-0
DOI :
10.1109/IVNC.2006.335377
