The growth temperature effect on vertically aligned carbon nanotubes parameters

被引:4
|
作者
Il'in, O. I. [1 ]
Il'ina, M. V. [1 ]
Rudyk, N. N. [2 ]
Fedotov, A. A. [2 ]
Ageev, O. A. [1 ]
机构
[1] Southern Fed Univ, Res & Educ Ctr Nanotechnol, Rostov Na Donu, Russia
[2] Southern Fed Univ, Lab Nanobiotechnol & New Mat, Rostov Na Donu, Russia
来源
基金
俄罗斯基础研究基金会;
关键词
carbon nanotube; chemical vapor deposition; raman spectroscopy; catalytic centers; synthesis;
D O I
10.17586/2220-8054-2018-9-1-92-94
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We studied the influence of the synthesis temperature on geometric parameters and structural perfection for vertically aligned carbon nanotubes (VACNT). We established that a synthetic temperature of 750 degrees C allows one to obtain the lowest concentration of defects in VACNT, with a diameter of 44+/-3 nm and a height of 80+/-9 nm. When temperature is increased up to 800 degrees C, an increase of the VACNT geometric dimensions was observed, which may be due to an increase in the catalytic centers (CCs) migration rate and their integration into larger centers. Also, at 800 degrees C, the concentration of defects in the nanotubes was increased due to the violation of carbon bonds during the acceleration of the acetylene desorption process from the surface of the sample.
引用
收藏
页码:92 / 94
页数:3
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