TY - JOUR

T1 - Interfacial interaction in a composite based on multi-walled carbon nanotubes and amorphous tin oxide

AU - Nesov, S. N.

AU - Bolotov, V. V.

AU - Korusenko, P. M.

AU - Povoroznyuk, S. N.

AU - Vilkov, O. Yu

PY - 2016

Y1 - 2016

N2 - The specific features of changes in the electronic structure of multi-walled carbon nanotubes (MWCNTs) due to the interaction with an amorphous tin oxide in the SnOx/MWCNT composite formed by magnetron sputtering have been investigated using X-ray spectroscopy. It has been shown that the formation of chemical bonds responsible for significant changes in the local and electronic structures of the outer layers of MWCNTs occurs at the boundaries of the “amorphous oxide/MWCNT” contacts. The vacuum annealing of the composite leads to the disturbance of the chemical interaction at interfaces of the composite and to a partial recovery of the local structure of the outer layers of MWCNTs. A decrease in the amount of oxygen in the tin oxide under vacuum annealing conditions causes an increase in the number of unpaired Sn 5s electrons, which, in turn, enhances the charge transfer through the interfaces in the composite and leads to a splitting of the π*-subsystem of the outer layers of MWCNTs.

AB - The specific features of changes in the electronic structure of multi-walled carbon nanotubes (MWCNTs) due to the interaction with an amorphous tin oxide in the SnOx/MWCNT composite formed by magnetron sputtering have been investigated using X-ray spectroscopy. It has been shown that the formation of chemical bonds responsible for significant changes in the local and electronic structures of the outer layers of MWCNTs occurs at the boundaries of the “amorphous oxide/MWCNT” contacts. The vacuum annealing of the composite leads to the disturbance of the chemical interaction at interfaces of the composite and to a partial recovery of the local structure of the outer layers of MWCNTs. A decrease in the amount of oxygen in the tin oxide under vacuum annealing conditions causes an increase in the number of unpaired Sn 5s electrons, which, in turn, enhances the charge transfer through the interfaces in the composite and leads to a splitting of the π*-subsystem of the outer layers of MWCNTs.

UR - http://www.scopus.com/inward/record.url?scp=84971013897&partnerID=8YFLogxK

U2 - 10.1134/S1063783416050164

DO - 10.1134/S1063783416050164

M3 - Article

AN - SCOPUS:84971013897

VL - 58

SP - 997

EP - 1003

JO - Physics of the Solid State

JF - Physics of the Solid State

SN - 1063-7834

IS - 5

ER -