Synthesis, characterization, and electrical properties of nitrogen-doped single-walled carbon nanotubes with different nitrogen content

被引：70

作者：

Ibrahim, E. M. M. ^{[1
,2
]}

Khavrus, Vyacheslav O. ^{[2
,3
]}

Leonhardt, Albrecht ^{[2
]}

Hampel, Silke ^{[2
]}

Oswald, Steffen ^{[2
]}

Ruemmeli, Mark H. ^{[2
]}

Buechner, Bernd ^{[2
]}

机构：

[1] Sohag Univ, Fac Sci, Dept Phys, Sohag 82524, Egypt

[2] IFW Dresden, D-01171 Dresden, Germany

[3] Natl Acad Sci Ukraine, LV Pisarzhevsky Phys Chem Inst, UA-03028 Kiev, Ukraine

来源：

关键词：

Chemical vapor deposition (CVD); N-doped SWCNT; Raman spectroscopy; X-ray photoelectron spectroscopy (XPS); Electrical properties; RAMAN-SPECTROSCOPY; RESONANCE RAMAN; SHOCK-TUBE; GROWTH; TEMPERATURE; NITRIDE; NANOPARTICLES; BORON; FE;

D O I：

10.1016/j.diamond.2010.05.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nitrogen-doped single walled carbon nanotubes (SWCNTs) have been synthesized via the thermal decomposition of ferrocene using different ratios of acetonitrile/ethanol feedstock mixtures during the chemical vapor deposition process. The experiments were performed at 950 C and 2 bar. The concentration of acetonitrile in the mixtures was varied from 0% to 100%. High resolution transmission electron microscopy and Raman spectroscopical measurements revealed the formation of SWCNTs for all mixtures. X-ray photoelectron spectroscopical analysis show nitrogen doping levels of up to 2 at.%. The doping levels increase as the acetonitrile concentration increases. The nitrogen incorporation is predominantly in the pyridine form. Electrical conductivity measurements show the dependence of conductivity as a function of nitrogen incorporation in the SWCNTs. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：1199 / 1206

页数：8

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