Open AccessLow temperature growth of carbon nanotubes by chemical vapor deposition for field emission cathodes
Author(s) -
Guo Ping-sheng,
Ting Chen,
Cao Zhang-Yi,
Zhejuan Zhang,
Yiwei Chen,
Zhuo Sun
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.6705
Subject(s) - field electron emission , materials science , carbon nanotube , chemical vapor deposition , carbon nanofiber , electric arc , cathode , catalysis , chemical engineering , field emission display , carbon fibers , nanotechnology , analytical chemistry (journal) , electron , electrode , composite material , chemistry , biochemistry , chromatography , engineering , physics , quantum mechanics , composite number
Carbon nanotubes/nanofibers (CNTs) were grown on sodalime glass by low temperature chemical vapor deposition. The catalytic films were pre-patterned using screen-printing method, combined with filtered cathodic vacuum arc or ion beam sputtering. The effect of different catalysts on the CNT growth and field emission were investigated. For samples catalyzed with a-C:Co, Ni-Cu or Cu, no CNTs are formed, and they show no field emission below the applied field of 4.4V/μm. For samples catalyzed with Ni-Fe or Ni-Cr, large amounts of entangled CNTs are successfully obtained and exhibit good electron emission, having a turn-on field as low as 2.5V/μm. The process, due to its simplicity and relatively low growth temperature, is promising for practical application in field emission display.