Open AccessComparison of field emission of carbon, carbon nitride and boron carbon nitride nanotubes
Author(s) -
Qiang Li,
Erjun Liang
Publication year - 2005
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.54.5931
Subject(s) - field electron emission , materials science , carbon nanotube , boron nitride , carbon nitride , optical properties of carbon nanotubes , carbon fibers , nitride , nanotechnology , chemical engineering , carbon nanofiber , composite material , electron , nanotube , catalysis , layer (electronics) , organic chemistry , chemistry , physics , quantum mechanics , photocatalysis , composite number , engineering
Carbon,CNx and BCN nanotubes were synthesized by pyrolysis at 860℃ and purified. Thin films of the purified samples were fabricated by a screen-printing method. The field emission effect of these films was compared. It was found that the turn-on field was 2.221.1 and 4.4V/μm,and the current density at 5.7V/μm was 14003000 and 50μA/cm2 for C, CNx and BCN nanotubes,respectively. The electron field emission property of the CNx nanotubes was better than the carbon nanotubes while that of BCN nanotubes was the worst. The origin of the differences in field emission of these films was explained.