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Noncatalytic synthesis of carbon‐nitride nanocolumns by dc magnetron sputtering
Author(s) -
Shalaev R. V.,
Ulyanov A. N.,
Prudnikov A. M.,
Shin G. M.,
Yoo S. I.,
Varyukhin V. N.
Publication year - 2010
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200925560
Subject(s) - materials science , carbon nitride , graphene , carbon fibers , sputter deposition , graphite , quartz , scanning electron microscope , nitride , substrate (aquarium) , nitrogen , chemical engineering , sputtering , nanotechnology , analytical chemistry (journal) , thin film , catalysis , composite material , chemistry , composite number , layer (electronics) , organic chemistry , oceanography , photocatalysis , geology , engineering
Carbon‐nitride nanocolumns were produced without catalyst metal by dc magnetron sputtering of a graphite target in pure N 2 gas at pressure of 26.0 Pa on a quartz glass substrate kept at ∼200 °C. The nitrogen/carbon ratio in nanocolumns equals 0.18. Scanning electron microscopy shows that films represent dense nanostructure with columns ∼70–80 nm in diameter. The main fraction of the nitrogen is sp 2 ‐coordinated by carbon and enters into the graphene layers as substitutional atoms; the other fraction of the nitrogen facilitates a cross‐linking between the graphene layers through sp 3 ‐coordinated carbon.
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