Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Effect of boron and nitrogen additives on structure and transport properties of arc-produced carbon. / Sedelnikova, O. V.; Fedoseeva, Yu V.; Romanenko, A. I.; Gusel'nikov, A. V.; Vilkov, O. Yu.; Maksimovskiy, E. A.; Bychanok, D. S.; Kuzhir, P. P.; Bulusheva, L. G.; Okotrub, A. V.
в: Carbon, Том 143, 2019, стр. 660-668.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Effect of boron and nitrogen additives on structure and transport properties of arc-produced carbon
AU - Sedelnikova, O. V.
AU - Fedoseeva, Yu V.
AU - Romanenko, A. I.
AU - Gusel'nikov, A. V.
AU - Vilkov, O. Yu.
AU - Maksimovskiy, E. A.
AU - Bychanok, D. S.
AU - Kuzhir, P. P.
AU - Bulusheva, L. G.
AU - Okotrub, A. V.
PY - 2019
Y1 - 2019
N2 - We have studied the effect of introduction of boron, nitrogen or both elements into an electric arc on the morphology and the conductivity of the resultant carbon products. Scanning and transmission electron microscopies showed that the use of a boron-filled graphite electrode and a nitrogen gas during the arc discharge synthesis strongly affects the growth kinetics of carbon nanoparticles. The addition of boron promotes the formation of short, defective carbon nanotubes. In contrast, involvement of nitrogen in the synthesis process produces more perfect carbon nanostructures, including graphitic plates. Evaporation of a boron-filled electrode in a nitrogen atmosphere leads to BN co-doping of the carbon product. The concentration of each dopant is ca. 1 at.% and this value is twice greater than that for the cases of individual dopants. Among the studied materials, the BN-doped one possessed the highest conductivity, and this was attributed to the synergetic effect of co-doping. A substitution of carbon atoms by boron or nitrogen resulted in the p- or n-type doping of the samples, respectively. The evolution of conductivity with temperature and magnetic field showed that transport properties of the arc discharge synthesis products are strongly dependent on the charge carrier concentration, morphology and crystallinity of carbon nanoparticles.
AB - We have studied the effect of introduction of boron, nitrogen or both elements into an electric arc on the morphology and the conductivity of the resultant carbon products. Scanning and transmission electron microscopies showed that the use of a boron-filled graphite electrode and a nitrogen gas during the arc discharge synthesis strongly affects the growth kinetics of carbon nanoparticles. The addition of boron promotes the formation of short, defective carbon nanotubes. In contrast, involvement of nitrogen in the synthesis process produces more perfect carbon nanostructures, including graphitic plates. Evaporation of a boron-filled electrode in a nitrogen atmosphere leads to BN co-doping of the carbon product. The concentration of each dopant is ca. 1 at.% and this value is twice greater than that for the cases of individual dopants. Among the studied materials, the BN-doped one possessed the highest conductivity, and this was attributed to the synergetic effect of co-doping. A substitution of carbon atoms by boron or nitrogen resulted in the p- or n-type doping of the samples, respectively. The evolution of conductivity with temperature and magnetic field showed that transport properties of the arc discharge synthesis products are strongly dependent on the charge carrier concentration, morphology and crystallinity of carbon nanoparticles.
KW - ELECTRONIC-PROPERTIES
KW - DISCHARGE SYNTHESIS
KW - MOLECULAR NITROGEN
KW - WEAK-LOCALIZATION
KW - NANOTUBES
KW - GRAPHITE
KW - GRAPHENE
KW - NITRIDE
KW - MAGNETORESISTANCE
KW - SPECTROSCOPY
UR - http://www.scopus.com/inward/record.url?scp=85057472877&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2018.11.071
DO - 10.1016/j.carbon.2018.11.071
M3 - Article
AN - SCOPUS:85057472877
VL - 143
SP - 660
EP - 668
JO - Carbon
JF - Carbon
SN - 0008-6223
ER -
ID: 41101300