The origin of changes in the electronic structure of oriented multi-walled carbon nanotubes under the influence of pulsed ion radiation

被引：17
作者：
Bolotov, V. V. [1 ]
Korusenko, P. M. [1 ]
Nesov, S. N. [1 ]
Povoroznyuk, S. N. [1 ]
Knyazev, E. V. [1 ]
机构：
[1] Russian Acad Sci, Omsk Sci Ctr, Siberian Branch, Omsk 644024, Russia
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2014年 / 337卷
基金：
俄罗斯基础研究基金会;
关键词：
Multi-walled carbon nanotubes; X-ray photoelectron spectroscopy; X-ray Auger-electron spectroscopy; Onion-like carbon; Nanodiamond; IRRADIATION; SURFACE; XPS; NANODIAMOND; MECHANISM; DIAMOND; GROWTH;
D O I：
10.1016/j.nimb.2014.07.014
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
On the basis of spectra obtained through the X-ray Auger-electron spectroscopy (XAES) of carbon (C KVV) and X-ray photoelectron spectroscopy (XPS) of the carbon valence band using the equipment of the Russian-German beam line of the synchrotron radiation facility BESSY II and a Kratos Axis Ultra DLD analytical system, the influence of pulsed ion radiation on the ratio of sp(2)/sp(3)-hybridized orbitals of carbon atoms in layers of oriented multi-walled carbon nanotubes (MWCNTs) is investigated. It is shown that when the MWCNTs are subjected to ten pulses, a substantial increase in the proportion of carbon atoms in the sp(3) hybridization state occurs compared with MWCNTs subjected to a single pulse. This increase is associated with the formation of thin (<10 nm) nanotubes and onion-like carbon, inside which masses of nanodiamond structures are observed in some cases. (C) 2014 Elsevier B.V. All rights reserved.
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页码：1 / 6
页数：6
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