Phosphorus incorporation in single-walled carbon nanotubes produced by low-pressure CVD

被引：3

作者：

Mendoza, C. D. ^{[1
]}

Freire, F. L., Jr. ^{[1
]}

Larrude, D. G. ^{[2
]}

Maia da Costa, M. E. H. ^{[1
]}

机构：

[1] Pontificia Univ Catolica Rio de Janeiro, Dept Fis, BR-22451900 Rio De Janeiro, Brazil

[2] Univ Prebiteriana Mackenzie, Graphene & Nanomat Res Ctr Mackgraphe, Sao Paulo, Brazil

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2016年 / 253卷 / 12期

关键词：

carbon nanotubes; phosphorus; Raman spectroscopy; X-ray photoelectron spectroscopy; NITROGEN-DOPED CARBON; RAMAN-SCATTERING; PHONON RENORMALIZATION; CATALYST; GRAPHENE;

D O I：

10.1002/pssb.201600377

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The aim of this work is the synthesis and characterization of single-walled carbon nanotubes with phosphorus incorporated. Two temperatures (800 and 850 degrees C) were used to produce the nanotubes in a low-pressure chemical vapor deposition system using as precursor the solid substance triphenylphosphine without any dilution in liquid. Raman spectroscopy and X-ray photoelectron spectroscopy were used to characterize the samples. Raman spectroscopy were employed to show the signature of single-walled carbon nanotubes and a shift in Raman bands was observed due to the presence of phosphorus in the structure comparing with a reference pristine sample. The shift was attributed to changes in the electronic properties of the material due to doping by phosphorus atoms. XPS spectra confirm the presence of phosphorus bonded to carbons atoms, suggesting the phosphorus incorporation in carbon nanotube structure. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2528 / 2533

页数：6

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